adding categories in menu
deleting commented code
Merge pull request #56 from moztn/medfiras

adding categories in menu nav bar
Fixing #30 : The slides url is not checked when edited
Merge pull request #59 from asmasma21/master

The slides url is not checked when edited
When we edite slides, the slide category is setted the first one in the liste and not the default one
When we edite slides, the slide category is setted the first one in the liste and not the default one
When we edite slides, the slide category is setted the first one in the liste and not the default one
When we edite slides, the slide category is setted the first one in the liste and not the default
When we edite slides, the slide category is setted the first one in the liste and not the default
Merge pull request #60 from asmasma21/master

Fixing #55 : When we edit slides, the slide category is set the first one in the liste and not the default one
Clearing the add new slide form
Merge pull request #62 from asmasma21/master

Clearing the add new slide form
delete/update categories and added forms
Merge branch 'master' of https://github.com/moztn/slides-moztn
fixed #64:Deleting a category will delete all slides in that category
fixed #49:Adding pagination on the admin page for the slides and the categories
category list id must be defferent slides-list
Fixing #61 & #22: Add screenshot input to add and update slide form (admin) &  Default Screenshot
Merge pull request #65 from asmasma21/master

Fixing #61 & #22: Add screenshot input to add and update slide form (adm...