populated db

Signed-off-by: Juliana Davila <judaro13@gmail.com>
Solving Moka-153
adding layout

Signed-off-by: Juliana Davila <judaro13@gmail.com>
showing courses by master

Signed-off-by: Juliana Davila <judaro13@gmail.com>
Including rake task automatic database fill up
Including files from paola's branch
showing preinscriptions for course

Signed-off-by: Juliana Davila <judaro13@gmail.com>
Merge remote-tracking branch 'origin/valentina'

Conflicts:
	app/models/user.rb
Merge remote-tracking branch 'origin/juliana'

Conflicts:
	app/views/layouts/application.html.haml
updated layouts

Signed-off-by: Juliana Davila <judaro13@gmail.com>