Migrating to angular, step 1

Migrated most of the panel’s code, still have the settings screen,
split pane and some minor issues left
Migrated settings
Deleted old mime types file
Finished migrating to angular

(hopefully)
Cleaned up code
Added network request panel & wildcard support
Merge pull request #11 from dutzi/angularjs-rewrite

Angularjs rewrite (+network request panel & wildcard support)