Integration

Signed-off-by: Matt Schaub <matt.schaub1337@gmail.com>
Merge branch 'master' of https://github.com/skoechle/sobek

Conflicts:
	database/sobek/public/MATERIAL.sql
	source/sobek-workflow-engine/pgraph-ejb/src/main/java/com/sobek/pgraph/PgraphManagerBean.java

Signed-off-by: Matt Schaub <matt.schaub1337@gmail.com>
Implementing pgraph functions.

Signed-off-by: Matt Schaub <matt.schaub1337@gmail.com>