added a spec file to checkout #179
added image to all notifications
added image to image list
added bg #282
started tests #282
added new background
 added create , delete , assign task #144 #146 #200
 added missing model of task_user , documentation cleaning , and changed size of text field #146 #144 #200
 added tests #144 #146 #200
 organised the view #144 #146 #200
documentation and modified validations #282
 removed photo uploader added edit
 added delete , create , edit and assign task all working with new midifications of reviewer #144 #145 #146 #200
 #144 #145 #146 #200 corrected the documentation and code indentation
tests are done #282
changed project params in controller  #282
resolving conflicts #179
updated migrations #282
 added tasks controller #144
adjusted validations #179