Merge pull request #212 from MGhanem/fix_master

fix master styles
[Issue #193] Internationalization aqquired
C3_SalmaFG_#77: Salma created a mig developers_projects
removed scaffolded css
Merge pull request #213 from MGhanem/C3_SalmaFG_S07_Mig

C3_SalmaFG_#77: Salma created a migration developers_projects
Merge pull request #214 from MGhanem/fixing_navbar_signin

Made navbar signin using form_for instead of hardcoding and removed scaffolded css for projects
[Issue #193] added links to change locale in the navbar
Merge branch 'master' of github.com:MGhanem/smartsoft-13 into C4_m0hamed_C5F2_switch_locales
[Issue #193] added translations for the navbar
added yard and dependency to Gemfile
#86 Adding birth date column in place of age column in Gamer table
Merge pull request #216 from MGhanem/removing_age_adding_bdate_gamer_migration

#86 Adding birth date column in place of age column in Gamer table
#86 replacing text for select to bdate in sign up page
#86 adding some validations to the date and improving others
C3_SalmaFG_#77: Salma changed developers_projects column name
create migration linking both Developer to Keyword for follow
Created prefered synonyms
#86 making the sign up view better by select instead of text
Merge pull request #218 from MGhanem/Create_table_that_links_Developer_Synonym_Keyword

Created preferred synonyms table
Merge pull request #215 from MGhanem/adding_yard

added yard and redcarpet(dependency) to Gemfile