Bandcamp support (#3252)

* Add configuration options for bandcamp

* Add bandcamp config options

* Add bandcamp config options

* Initial crude bandcamp search and download support

* Add bandcamp search support

* Better utf-8 handling and tagging of the downloads

* Post-process bandcamp dodwnload directory

* Tweak the order of downloads (prevent querying bandcamp too often)

* Show [bandcamp] link in the history page

* pep8

* Use more sane loglevels

* Oops.

* Patch regexp to support new bandcamp page structure

* Make sure the file-key exists, is not None and contains data

data/interfaces/default/history.html

@@ -56,6 +56,8 @@
                 fileid = 'torrent'
             if item['URL'].find('codeshy') != -1:
                 fileid = 'nzb'
+            if item['URL'].find('bandcamp') != -1:
+                fileid = 'bandcamp'
 
             folder = 'Folder: ' + item['FolderName']