start for jdbc-source junit tests with derby mem db
strings to constants
renamed iftype to MgmtType for jdbc and xls source :: removed echo.groovy from examples and added echo.mapper
Merge branch 'feature-PRIS-16-ifTypeRenaming' into develop
first minor refactorings
fixes based on code review
Merge branch 'feature-code-review-fixes' into develop
fixes based on code review
Added documentaion for the JDBC source.
Added schema for the in-memory test database
renamed requisition.merge.keepAllA to requisition.A.keepAll same same for B
change merge parameters in examples
added minimal jdbc-source test
added basic test for jdbc source
Fixed NullPointer in XLS-Source if required headers are missing. PRIS-19
fixed the missing throws statment in XlsSourceTest
Merge