Switched methods: firstly trying to get stream from repo and if it fails - via URL
Added error message
XForms to PDFs now can be rendered in "offscreen" mode - without HTTP requests
Improvements; using message value for email documents
Methods for working with external entity
Merge branch 'master' of github.com:idega/org.jboss.jbpm

* 'master' of github.com:idega/org.jboss.jbpm:
  Improvements; using message value for email documents
  XForms to PDFs now can be rendered in "offscreen" mode - without HTTP requests
  Added error message
  Switched methods: firstly trying to get stream from repo and if it fails - via URL
Merge branch 'master' of github.com:idega/org.jboss.jbpm into BRANCH_PLATFORM_5

Conflicts:
	src/java/com/idega/jbpm/artifacts/presentation/ProcessArtifacts.java
	src/java/com/idega/jbpm/identity/permission/TaskAccessPermissionsHandler.java
	src/java/com/idega/jbpm/variables/impl/BinaryVariablesHandlerImpl.java