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.

Imported some of the GPLv3'd changes from RhodeCode v2.2.5.

This imports changes between changesets 21af6c4eab3d and 6177597791c2 in
RhodeCode's original repository, including only changes to Python files and HTML.

RhodeCode clearly licensed its changes to these files under GPLv3
in their /LICENSE file, which states the following:
The Python code and integrated HTML are licensed under the GPLv3 license.

(See:
https://code.rhodecode.com/rhodecode/files/v2.2.5/LICENSE
or
http://web.archive.org/web/20140512193334/https://code.rhodecode.com/rhodecode/files/f3b123159901f15426d18e3dc395e8369f70ebe0/LICENSE
for an online copy of that LICENSE file)

Conservancy reviewed these changes and confirmed that they can be licensed as
a whole to the Kallithea project under GPLv3-only.

While some of the contents committed herein are clearly licensed
GPLv3-or-later, on the whole we must assume the are GPLv3-only, since the
statement above from RhodeCode indicates that they intend GPLv3-only as their
license, per GPLv3§14 and other relevant sections of GPLv3.

Added more detailed (and localized) information if hgsubversion is not
installed while enabling from settings

Switched order of actions when doing repo rescan.

doing invalidation after repository scan is not optimal.
In case of big repository we first create an instance then invalidate
cache that we don't actually need. Reversing this order prevents that

Added extra flag to invalidate caches when doing rescan from web
interface

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

Implements #842 RhodeCode version disclosure.

- it's now implemented as visual option in settings

- Manage User’s Groups: create, delete, rename, add/remove users inside.
by user group admin.
In this case, a user's group can be owned by several people thru an owner user's group.

Some refactoring of naming, permission handling logic.
- remove some code duplicity as well as inconsistent naming

#749 and #516 Removed dupliciting of repo settings for rhodecode admins and repo admins
- repo admin now is allowed the same set of operations as the rhodecode admin
- single logic for forms/validations/permissions
- fixes #805 update external repo via webinterface
-

settings: simplify handling of form values for hooks and extensions

This makes simpler to follow the code path and search for input input field
names. The form field names are hardcoded in the template, so generating them
programmatically in the controller do not really add any flexibility.

Implemented #738 Giving a user WRITE+ permissions on folder should not allow repo creation in root folder.
user can create repos only if he got explicitly permission for creating repos globally, or have WRITE+ permission on a group.
Then he can create repositories inside this group

repository extra fields implementation
- verion bump to 1.6
- migrations

filter out repo groups choices to only ones that you have write+ access to. Before it was read+ access and you got proper
error saying that you don't have write permissions to group to create repo in. Filtering out the read groups is less confusing for users.
ref #730

Use common function for generation of grid data
- admin grid now has dedicated edit button, and uses changeset_cache
- some small improvements to grid
- all other datatables use this

Implemented #379 defaults settings page for creation of repositories
- locking
- statistics, downloads
- repository type

Add git version detection to warn users that Git used in system is to old. ref #588
- also show git version in system details in settings page

Implemented permissions for writing to repo
groups. Now only write access to group allows to create a repostiory
within that group

Added form for controlling mercurial extensions
added hggit also for future

merged + fixed pull request #62: Implemented metatags and visualisation options.
- new tag lang
- fixed found issues
- added simple test

sqlalchemy sessions cleanup in admin
Cleanup settings options

Renamed name to firstname in forms
- added multiple test for edit my account and edit user from admin
- fixed issues with update user accounts from admin

Initial version of landing revisions ref #483
- fixed relevant tests for creation of repo
- added some tests for git

Removed hardcoded hooks names from settings.
Added helper for getting repos_location

garden
- unified logging formatting to use only %

commit less models
- models don't do any commits(with few exceptions)
- all db transactions should be handled by higher level modules like controllers, celery tasks

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

Notification system improvements
- deleting
- tests
- ui
- moved to separate controller

unified generation of repo groups choices
added on-the-fly conversion to new repository groups format (supporting path as a link)

Deprecated UserModel removals

- removed from permissions controller
- removed from settings controller

fixes #200, rewrote the whole caching mechanism to get rid of such problems. Now cached instances are attached
to db repository instance, and then fetched from cache. Also made all current test work.

#47 implemented Adding of new repo_groups+forms+validators. Fixed sorting of repo groups by main names in multiple locations. Removed some unneeded calls to self.sa for exchange to .query() methods.
Added new db unique key for Group

added some fixes to LDAP form re-submition, new simples ldap-settings getter.
Updated docs for new ldap fixes. Removed depracated settings model, in exchange for db model classmethods.

#109, added optional clone uri when creating repo.
Cleaned up repos controller moved common code into __load_data

another major codes rewrite:
- created BaseRepo controller for all repo specific controller, and added common data propagation
- removed obosete codes, and made optimizations, removed to often calls to RepoModel
- fixed found bugs in files controller that generated unhandled 500 errors
- cache issues
- removed repo_branches global template values
- journal fixes
- main repo list is fully dict now it's less resource heavy that way

extended admin rescan to show what repositories was added and what removed
fixed found bugs, added expunge to cached getter since it introduce some more problems.
Added some relationship to properly clean related objects from database.

Major refactoring, removed when possible calls to app globals.
Refactored models to fetch the paths needed for scans from database directly
small fixes in base