Upgrade CMIS LIbrary and Implement CMIS Client

[jtesser]

1. Upgrade to the latest http://chemistry.apache.org/java/opencmis.html
2. Update both read/write interfaces for content, folders, templates, files as content files(not old files), containers, menu links (THIS IS THE SERVER PIECE. meaning dotCMS is the CMIS server)
3. Implement CMIS Client tools. Create Viewtools for querying CMIS Servers on the front end of dotCMS. Meanign you can query for content in other CMIS servers.

Notes
a. should be restful ATOM bindings
b. need to provide examples and make sure the GUI client Chemistry ships with works.

[jkshapiro]

It would be most useful for dotCMS to act as a CMIS client. Would ease migration from other eCMS's.