Merge pull request #24 from KaiHufenbach/root-use-custom-header

Custom Reader for Root Objects without usable Constructor
- minor updates
- Fixed GitHub issue#25 with generics.
[maven-release-plugin] prepare release 2.7.4.201412220938
[maven-release-plugin] prepare for next development iteration
- Fixed bug in mapping template arguments to fields
updated readme
[maven-release-plugin] prepare release 2.7.5.201412222208
[maven-release-plugin] prepare for next development iteration
- beefed up test
- more tests
updated readme