enable CM_Exception::getMetaInfo() to return raw meta
log raw meta info
change cm_log metainfo to TEXT
recursively serialize metainfo
add compatibility with old, nonserialised meta info entries
return null on invalid serialised data
docu
only serialise once
Introduced email verification service

- Introduced service interface and default service
- Used in CM_FormField_Email (refactoring)
Added KickBox email verification service

- Installed php client
- Rejected disposable addresses
- Rejected addresses with poor Sendex if no SMTP check is possible
- Added tests
Made KickBox service configurable

- Added tests
Merge branch 'master' of github.com:cargomedia/CM into issue-1328
"Updated" KickBox to ~1.0.3
Renamed CM_Service_EmailVerification_Default to CM_Service_EmailVerification_Standard
Handled the case where you have no KickBox credits any more

- Added test
Added tests for CM_Service_EmailVerification_Standard
add CM_File::listFiles()
implemented switch between recursion and no recursion in FileSystemAdapter::listFiles()
implemented listFiles on CM_File
add tests for non-recursive listing by prefix
add test for CM_File::listFiles()