Merge pull request #1 from jsilvestre/master

Added: fusermount should be used in Linux and umount with OSX
fix some tests, add more about database (still wip)
README fixes
add TODO comments to couchmount file
Merge branch 'master' of github.com:mycozycloud/cozy-fuse-linux

Conflicts:
	README.md
	cozyfuse/couchmount.py
improve overall logging
add infos to README
add missing tests for db utils
add tests for remote module
init database fix
Fixed: installation instructions for OSX