C3.S27 - As a Developer, I should be able to view my project.. C3.S12 - As a Developer, I should be able to edit my project.

Issue #205 
Issue #209 

@m0hamed 
@AmrARaouf 
@nohahesham 
@Fattouh92 

Review files: controllers/projects_controller
                        models/project.rb
                        views/_form.html.erb
                        views/new.html.erb
                        views/edit.html.erb
                        views/show.html.erb