[FEATURE] Add incremental add and update
[FEATURE] Add the coding style on project basis
Change the project settings to better fit the Ampache coding guidelines because
I normally use different settings.
[FEATURE] Remove some empty lines
[BUGFIX] Add trailing slash when needed
And also did a little bit of reformatting
Merge pull request #511 from Razrael/feature/incrementalImport

Add incremental add and update to beets catalogs