Add Senlin module

[L-I-O-N]

As openstack mitaka version add a new core project which is called Senlin. According to the basic framework, I Add a new module to implements Senlin RESRful API.And I hava tested all the basic functions of this module. #684

[vinodborole]

update for Node?
http://developer.openstack.org/api-ref-clustering-v1.html

[L-I-O-N]

The update function need to be sent request as PATCH method. But the SDK do not support this method.

[auhlig]

@L-I-O-N: Actually it does. We're using HTTP PATCH in the Identity V3 part.

[vinodborole]

@L-I-O-N Thanks a lot for this effort, appreciate it. Please have a look at the review comments and please add test cases for your implementation

[gondor]

I agree with everything @vinodborole has said @L-I-O-N . Thank you for the contribution. Could you also create an Issue for this PR and associate it in the description or comments. Thank you again

[L-I-O-N]

I have modified all of the review comments and re submitted the code.Please review.

[L-I-O-N]

@vinodborole @gondor @auhlig Thanks a lot.

[gondor]

Thanks for the contribution @L-I-O-N - merging now

[gondor]

I'm reverting this merge. Too many build errors including "case" of file names with senlin/version.java. Please test using a clean "mvn verify"

[L-I-O-N]

Thanks for your trust and I'm sorry for my mistake.I hava fix it,and create a new PR. @gondor