Updated the tags and release notes for the upcoming v3_1 release
Add basic documentation of the error classad attributes
Added easy to spot, support email address to the FAQ
3637: Make sure XML in documentation is valid XML!
Fixed xml syntax errors in the config
Merge branch 'master_3673'

Conflicts:
	doc/factory/configuration.html
Merge branch 'master_3637'

Conflicts:
	doc/factory/configuration.html
Merge branch 'master' into master_2905