BK-986 Create new Books page
BK-1035 Change SQL statements in feeds.py to Django commands
BK-1034 Add group image
Merge branch 'BK1030' into 2.0
Merge branch 'BK986' into 2.0
Merge branch 'BK1036' into 2.0
Merge branch 'BK1035' into 2.0
BK-1032 Fails when two groups have the same name
Merge branch 'BK1032_1' into 2.0
BK-1033 Strings are not made translatable
BK-1061 Portal views are not according to PEP8
BK-1049 Move security module to new booktype application
Merge branch 'BK1049' into 2.0
BK-1062 Duplicated code for joining/leaving groups
Merge branch '2.0' of https://github.com/sourcefabric/Booktype into 2.0