Telecom Italia changes

	- Edit classify signature
	- Readded row deleted by Simone Basso waiting for test possibile
	  static initializations (row 167 - Classify.java) marked with XXX
	- Added wikilink field in return object
	- TMFException(s) are now RuntimeException
	- Added ClassifyHTTPInterface.java Jax-rs annotated
	- Fixed bug in English index initialization
	- Replace IndexUtils constructor with static method
	- Added utility methods in TMFUtils.java
	- Deleted log4j.properties (probably will be moved in
	  TMFCoreInteface)
	- Re-indented some code
	- Other small changes
Classify.java: honour Lucene's IMAGE field

Make sure we return the content of the IMAGE field rather than
an empty string to the caller.

Unlike the previous implementation of TMF, however, here we
just return the URL in Lucene rather than the result of scraping
the corresponding webpage on the mobile wikipedia.

The latter step, in fact, is to be performed by the enricher.

While there, sort and reorganize imports.
Implemented adapter in ClassifyHTTPInterface; Implemented JSON as HTTP body request
Merge pull request #4 from thermz/feature/telecom_italia_changes

Telecom Italia changes