adding a demo backend

adding documentation for custom js

implementing custom js

better comment in default configuration + add section ...

* better comments in default config about static file serving
* adding section for futur functionality: adding custom js files
  (for auto-fill)

cosmetic change in doc

complete AD backend documentation

adding confirqtion for backends

typo in changelog

ChangeLog at root of repo + log of current devs.

fix some typos

fix unit test on duplicate user exception

adding vim swp file in gitignore

custom error handling for UserDoesntExist, UserAlreadyExists and GroupDoesntExist

typo in comment

pretier and cleaner run_test.sh

multiple modification/fix ...

* add display_name parameter for backend
* handle display_name in modify template (lonely groups) and error
  message
* fix bug in modify when user is in only one backend
* remove redondant exception in ad/ldap backend
* fix unit test accordingly
* fix License in AD backend (GPLv3 -> MIT, previously tought of using
  samba4 python library which is GPL, but this module finaly uses
  python-ldap which is MIT compatible)

turnoff the check for configuration file

extracting screenshots in a separate page

Merge branch 'master' of https://github.com/kakwa/ldapcherry

fixing default configuration for AD

Update README.rst

many comment + encoding fixes

fix authentification for AD backend

more encoding error fix (on ldap auth)

adding utf-8 char in unit tests for ldap backend

more encoding fixes

fix more encoding error

edit default configuration to take into account AD backend

fix rename in modify ...

when renaming an entry, dn must be reset to the correct value for
the modifications that come after the rename.

many fixes in encoding handling