migration to change author polymorphic relation to authorable in multiple tables
[#25]
fixed Map model and specs
[#25]
fixed MapWadfile specs
[#25]
fixed MapImage specs
[#25]
fixed Comment specs
[#25]
fixed MapsController and its specs
[#25]
MapImagesController and its specs fixed
[#25]
MapWadfilesController and its spec fixed
[#25]
all specs fixed(?)
[#25]