Merge pull request #151 from amagdas/master

fix(image upload): fix image upload, minor clean-up.
Merge pull request #152 from amagdas/master

fix(metadata) Fix metadata storage for Amazon
Merge pull request #153 from amagdas/master

fix(archive) fix media retrieval, minor cleanup
added author to content items
chore(eve) - update eve-elastic cursor.count()
Merge pull request #156 from amagdas/master

chore(eve) - update eve-elastic cursor.count()
Merge pull request #154 from ancafarcas/authorContentBranch

added author to content items
feat(comments for content archive items) - SD-507