Integration of geo distance in scoring (work in progress)
Optimisation on doc search hit
Conflicts:
	src/main/java/com/jaeksoft/searchlib/index/DocSetHits.java
Query optimisation (prepare distance)
Fixes sort issues
Optimising JNA/OSS library code
Add duration and end time to upload interface
Merge pull request #356 from emmanuel-keller/master

Searching improvement (sync with 1.5)