Merge pull request #44 from MGhanem/c1_kareem_task_s2

signin check for valid username and password
errors
Merge pull request #47 from MGhanem/c1_adamggg_task_models

C1 adamggg task models
Merge pull request #48 from MGhanem/c1_adamggg_task_models

pushing new list view form
Merge pull request #49 from MGhanem/c1_adamggg_task_s5

C1 adamggg task s5
Kareem finishing viewing lists and some modifications to url files
deleted index.html from git
added untracked files
fixed conflicts after finishing s5