Add save all button

Reuses the style from the context menu, but it’s not possible to reuse the directive.
Merge pull request #242 from mulesoft/save-all

Add save all button
Add support for importing from Swagger URLs
Connect to self-signed HTTPS sites
Update swagger to raml object conversion
Rebuild dist
Add local file import support
Support importing as a zip file
Enable drag and drop and import zip to root
Add auto focus to modals
Import directories from drag and drop (Chrome)
Properly validate file and folder name creation
Correct JSHint issues and add “eqnull” rule
Rebuild dist
Show a modal when the file is conflicting
Update dist
Fix karma tests
Move home directory usage
Fix drag and drop of folders
Make swagger import to a new file