West Sahara flag flipped
get_states_with_map method added; RIVER and LAKE Place types added; Place.code max_lenght extended
add_map command improved
add_places command improved
style sheets improved
kartograph.js tooltip fixed position reversed
note on welcome_page removed
states maps menu; social networks links
teplates markup cleanup
Map Zoom. closes #14
Cities, lakes and rivers support
big refactoring which also introduces Elo model

* Only one nampespace is used (geography) instead of three
  previously used namespaces (core, accounts, questions).

* Redundant data from database has been removed or moved
  to special tables (skills and difficulties for Elo).

* A lot of things has been removed but should be added in the future
  (commands).

issues: #12, #13
post deploy hook for openshift