e-mail: clarify that smtp_use_ssl defaults to false

Commented settings in configuration files conventionally indicate the
default value.

e-mail: remove unused setting error_message from ini files

The ini files and templates contain a commented setting of 'error_message'
which does not seem to be used. It is referring to the error_message
variable in Paste, which has as description (Paste:ErrorMiddleware):

When debug mode is off, the error message to show to users.

However, setting this value apparently made no effect at all in Kallithea.

i18n: drop redundant english translation

lang should thus be set empty instead of 'en', but we keep the en .mo around
to avoid upgrade issues.

ini file: clarify that beaker.session.key should be unique

When several instances of Kallithea are running on the same machine, the
same browser cannot be logged into both instances at the same time without
conflicts. The login session are saved into the same cookie; logging into
one instance closes the session on the second instance and vice-versa.

This is caused because the cookie name is simply 'kallithea', combined with
the fact that the cookie specification (RFC6265) states that there is no
isolation of cookies based on port. This means that the browser sends all
cookies from a given domain with all services (Kallithea instances) running
on that domain, irrespective of port.

The services thus need to handle any such issue themselves, for example by
using unique cookie names and only interacting with one's own cookie.

Making the key unique when creating the configuration file proved difficult:
- it does not seem possible to hook into 'paster make-config'
- since Beaker directly interprets the beaker.session.key, changing it on
the fly from SessionMiddleware will not work correctly.

There is a kallithea-config script that is an alternative to 'paster
make-config' which would be the ideal place to make such changes. However,
it seems this method is not advocated over 'paster make-config' (yet?).

Instead, simply add a comment in the config file and let the user take care
of it.

config: the default for show_revision_number should be false

Revision numbers are not really that useful and when shared publicly they can
lead to misunderstandings

Align and update the outdated ini files and templates

Change default database for development.ini to sqlite

First step in two-part process to rename directories to kallithea.
This first step is to change all references in the files where they refer
to the old directory name.

config: added example uwsgi configuration with auto-scaling
workers mode.

Allow RhodeCode maintainers to specify a custom bug tracker.

This allows people who maintain large RhodeCode installations to setup their
own bug tracker and respond to requests against their specific installation.
The maintainer is then free to forward problems with RhodeCode to the
canonical issue tracker on bitbucket.

If the config option "bugtracker" is present, its value will be used with the
"Report a bug" button. If left blank, this disables the button. If no value is
present, then the default is used. This is so that the new config option
doesn't break installations of RhodeCode upgrading to a newer version and to
allow easier installation for the common use case.

Fill session cookie secret with random generated app_uuid.
By default this setup is much more secure since it uses
SignedCookies instead of plain ones

Added flag to controll option for changing the repos path location
from web interface

Added use_poll option for latest waitress release.
If fixes issues with 1024 fd limit.

- added example of gunicorn config. It includes
a note about not using multiworker setup.

added alias configuration option for gists.
Used to generate nice looking urls for gists

added initial_repo_scan flag for controll if repo scaning should be performed on every startup.
There's always paster repo-scan or repo scann triggered from admin pannel

config: rename options to show_revision_number and show_sha_length

'sha_show_numeric_rev' had nothing to do with the sha value.

The revision numbers are kind of native to Mercurial and there they are known
as 'revision numbers'.

'sha_len' was very short and didn't clarify that it only controlled what was shown.

These settings are currently only used in the changelog, but they should be used everywhere.

made git refs filter configurable ref issue #797
- default --all was kept and --branches --tags (or even other variations) is possible to use via .ini file

configurable locking codes.
- this allows changing the default 423 LOCKED code to 2XX codes which don't break the transactions. Insted
it gives users a warning for push.

make the htsts headers optional and stored in .ini file.
also don't use it with DEBUG

Implemented #661 Add option to include diff in RSS feed
also include RSS item per page and cut_off_limit size in .ini options

Added option to ini files for controlling full cache of VCS instances.
This can increase performance for huge repositories like 300K changesets

#518 multiple issues patterns
- added logging
- some code cleanup
- added example of wiki pattern to .ini file
- updated contributors and changelog

Implemented patch from andrewsh ref #565 Add support for {netloc} and {scheme}
to alternative_gravatar_url

fixes issue #543, un-broken alternative gravatar option
- also now formatting is similar as other parts `{}`

sync alternative gravatar options to other .ini files
- changelog update

added comments into beaker session,
- added cookie_path option as example
- added prefix middleware as example usage
- increased session timeout to 30days

Switch to waitress wsgi server by default in rhodecode.
- waitress is fast, handles chunked encoding correctly (needed for git)
- waitress works on linux and windows
- it's now default because it can handle git properly out of the box.

Mysql fixes
- force INNODB engine
- set utf8 charset
- fix convert_unicode flag in .ini files
- fix constraints and FK

implements #212 moved default encoding variable into rhodecode-config. It's now possible to change
default utf8 to some other encoding.
- also added instance-id to config
- update ini files

default session settings was reverted to file.
- encrypted cookie requires additional libs, might be confusing for new users
- others who need it still will enabled it

Notification fixes
- email prefix added to .ini files
- html templates emails
- rewrote email system to use some parts from pyramid_mailer

configurable clone url
- posibility to specify ssh:// manually as alternative clone url.

Cached readme generation
- cleaned up cache system

Bumped sqlalchemy version to 0.7, replaced timerproxy with new event system for sqlalchemy.
TimerProxy is now longer valid profilling method for sqlalchemy

Added api_key into user, api key get's generated again after password change
updated ini files

moved statistics parse_limit into .ini files
decreased celery max task per child to 1 for better memory usage
stats task take usage of new slice option of repository

Celery is configured by the .ini files and run from paster now
removed celeryconfig, added homebrew celery-pylons,
added paster celeryd command, fixed tasks to use pylons configs, sqlalchemy sessions

Implemented whoosh index building as paster command.
docs update
fixed manifest.in for missing yui file.
Fixed setup to beta
added base for paster upgrade-db command

fixes #51 deleting a repo didn't delete it's dependent db entries.
fixed routes logger double entries