added hibernate second level cache and processing chain steps selector
Merge branch 'dev' of github.com:openforis/calc into dev

Conflicts:
	calc-core/pom.xml
	calc-core/src/main/java/org/openforis/calc/engine/CalculationStep.java
	calc-core/src/main/java/org/openforis/calc/engine/ProcessingChain.java
Merge branch 'dev' of github.com:openforis/calc into dev

Conflicts:
	calc-core/pom.xml
merged dependencies