various fixes for git and mercurial with InMemoryCommit backend and non-ascii files
- hg use tolocal for unicode objects
- git use core.quotepath=false for commands

notification inbox improvements
- added pagers
- css+styling fixes

#415: Adding comment to changeset causes reload
- comments are now added via ajax and doesn't reload the page

Added HTTP_X_FORWARDED_FOR as another method of extracting IP for pull/push logs.
- moved all to base controller

Notification fixes
- added cs ID to notification on changeset comment
- trimmed long commits to 256 chars
- cast to unicode the link re ticket #418

added hidden fulldiff GET param for disabling big diff cut off limit.
fixed context toggle options on single file diff

#404 API extensions for showing permission for users
- added permissions to get_user function
- added last_login to get_user and get_users function
- modified custom JSON encoder to handle non standard python types, like set, OrderedDict, datetime, date

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

- #347 when running multiple RhodeCode instances, properly invalidates cache
for all registered servers
- server start also clears all cache keys now

Api docs fixes
- return proper type instead of type_
- members return now also a type user or users_group

API docs improvement.
- added id to each INPUT params as it might be confusing for people that this param should always be there

implemented #377 Users view own permissions
- my account page uses YUI DT by default now

more detailed logging on auth system
- docs updates for debugging
- code garden

fixed #397 Private repository groups shows up before login
- added relevant test for this issue

temporarly fixed git _get_id_for_path problem in vcs.
Will iterate later while there's a nicer fix.

utils/conf
- created temporary utils2
- made config.conf for storing some configurations
- fixed some dependency import problems
- code cleanup
- rc-extensions now properly work for celery

added initial rc-extension module

- possible to store additional mappings for stats
- possible to overwrite and add to whoosh index extensions
issue #322
- post create repo hook callback
- post push/pull hooks callback

UI
- added clone-url into edit form on /settings page
- added help text into repo add/edit forms

fixed some unicode problems with waitress
- fixed clonning repos from non-ascii groups