Use ClamAV to scan uploaded files
rhbz901401 Add preliminary support for InDesign IDML documents

Limitation: mysqld's default max_allowed_packet is 1MB, which means
BLOBs must be less than 1MB.  (IDML files tend to be large.) We either
need to split files into multiple BLOBS, or to avoid bloating the
database, perhaps we should store in the file system.
Merge branch 'integration/master' of github.com:zanata/zanata into integration/master

Conflicts:
	pom.xml
rhbz917897 Prevent AlreadyClosedException when IndexReader is closed
Merge branch 'release' into integration/master
rhbz916830 - False positive in validation warnings, comparing wrong entries
rhbz916830 - False positive in validation warnings, comparing wrong entries
fix for https://bugzilla.redhat.com/show_bug.cgi?id=917897#c3
Merge branch 'integration/master' of github.com:zanata/zanata into integration/master
Merge branch 'release' into integration/master
Implement cache for last modified information per document per locale
fix test
Merge branch 'integration/master' into rhbz846314
work in progress: error indicator in document list view