Starting PressGang 1.6 Release
Added BZ#1080302 - Pressgang can't "fail" books with invalid XML.
Merge branch 'master' into devel

Conflicts:
	pom.xml
Fixed BZ#1095978 - Verbatim elements aren't being broken down correctly for translation.
Added BZ#1036937 - Build translated PO files.
Fixed BZ#1092188 - Standardise the freeze/snapshot functionality.
Fixed a failing test and updated logging properties.
Additional changes based on Matt's suggestion in BZ#1080302 - Pressgang can't "fail" books with invalid XML.
Updated rpm scripts/spec file to use the name csprocessor instead of cspclient.
PressGang 1.6 Release
Bumped the version to 1.6.1 to include a fix.