Merge branch 'master' into dev
Changed name of logfile for incs.
Don't return *, if bash glob don't find files/dir in evobackup-rm.
Update INSTALL.md in "What to backup" part.
Added sleep 0.2 before umounting /dev when stopping service.
Added --stats to rsync and keep 30 last lines for log.
Added -h to rsync.
Ameliorate report when creating or deleting incrementals.
All shebangs set to /bin/bash.
Fix a typo in evobackup-rm.sh & beautifications.

Beautifications of evobackup-inc.sh, evobackup-rm.sh & zzz_evobackup
Fix issue #10, delete temp empty dir at the end.
Do not pad day of month with zero for calculating node.
Send mail report only if incrementals where deleted.
Don't use Privilege separation in sshd chroot.
Revert "Don't use Privilege separation in sshd chroot."

This reverts commit eb6fd1704ae0bc1a41f18805a8be7507038e2fd6.
Added a check of release to use the good path for libnss.
New script for Elasticsearch 1.0
in actions.d/14_elasticsearch.disabled
Change an hard coded path for logging times.
Typo in filename in actions.d. 10_mysq.disabled -> 10_mysql.disabled
Added steps to INSTALL.md