renamed test for DefaultValues
implements tests for defaultValue fallback in IntegerFilterTest
fix bug in converting a non-set value

non-set values were converted from null to 0.0 which is wrong
implements tests for defaultValue fallback in RealFilterTest
implements tests for defaultValue fallback in BoolFilterTest
prevent NPE
Tests for default fallback in DateFilter
implemented a Unit Test
implemented Unit Tests and removed obsoltete stubs
implemented Unit Tests and removed obsolete stubs
Tests for default fallback in XHTMLFilter
compile regexp patterns with the DOTALL modifier
Merge branch 'filtersearch' of ssh://git.eclipse.org:29418/rmf/org.eclipse.rmf into filtersearch