Merge branch 'release/0.2.0' into develop
LA-4 #time 1h Admin creates and manage authors

Make unique to book isbn
Modify .gitignore
deleted tmp file and modify gitignore
modify gitignore
Edit application.css to book.css
LA-1 #time 1h Add admin Role

Add ransact gem for prepare search bug
LA-5 #time 1h Admin creates and manage books

Try to add search
LA-5 #time 1h Admin creates and manage bookss

Try to fix to blankable error
LA-5 #time 1h Admin creates and manage books

Fixed The search bug
LA-5 #time 1h Admin creates and manage books

Add search bar
LA-5 #time 1h Admin creates and manage books

Run with search bar
LA-4 #time 1h Admin creates and manage authors

Add search bar to authors
LA-4 #time 1h Admin creates and manage authors

Add search bar to category and update label of search bars
LA-5 #time 1h Admin creates and manage books

Edit model- book file
LA-1  #time 1h Add admin Role

Change name of label at search bar
LA-1 #time 1h Add admin Role

Try to Add device gem
Add view generate of device
LA-1 #time 1h Add admin role

Change file from erb to haml
LA-1 #time 1h Add admin role

Try to fix sqlite and migration bug