ignore generated .sha1 files for local maven deployment
updated to grails 2.2.4
ignore commons-codec:1.6 dependencies
APIClient: reset response.data to in case the mimeType is not handled in the switch the data is still useable
APIClient: added more mimetypes that represent json- or xml-oid content
TestCaseBase: weaken the checks for the content-type in get(JSON|XML) so anything containing json/xml is accepted; let the according parsers fail if it is not for real
notch up the version to RC3