Switch to RequestParameters.contains(String) because RequestParameters.getSingleValue(String) returns "" if null is returned by internal list data structure.
Merge pull request #29 from EHJ-52n/fix/NPE-because-of-empty-string-in-extension

Fix NPE when request without extension in send to SOS 2.0 instance
fix NPE in InsertionMetadataMissingCase
Merge pull request #32 from autermann/fix/NPE-in-lax-validation-case

Fix NPE in InsertionMetadataMissingCase
add trace statement
use latest version of xml bindings
log unknown schema type
fix some time related issues
revert to older version as schema changes breaks Java API available from compiled XMLBeans artifact
Merge remote-tracking branch 'eike/develop'