[Issue #193] Redid my work after wrong merge into master
[Issue #193] Added documentation
Merge branch 'master' of github.com:MGhanem/smartsoft-13 into C4_m0hamed_C5F2_switch_locales

Conflicts:
	arability/app/controllers/application_controller.rb
	arability/config/routes.rb
[Issue #195][WIP] modified search page layout
[Issue #195][WIP] modified some margins and styles in search page
Merge branch 'C4_NourhanMohamed_S12_advanced_search' of https://github.com/MGhanem/smartsoft-13 into word_management_theme
[MC] resolved merge conflicts