[twgit] Init feature 'feature-10': Not compatible with FreeBSD/OS X.
Replace calls to sed command by SUPERVISOR_SED_BIN.
Replace calls to awk command by SUPERVISOR_AWK_BIN.
Replace calls to ls command by SUPERVISOR_LS_BIN.
Standardize BASH_PATH, MUTT_CMD, AWK_BIN with BIN suffix.
Replace calls to date command by SUPERVISOR_DATE_BIN.
Replace calls to md5sum command by SUPERVISOR_MD5_BIN.
Replace calls to tar command by SUPERVISOR_TAR_BIN.
Force PHP error_reporting et display_errors in tests.
Pipe wc output to tr command to be compatible with FreeBSD wc command…
Always load /conf/supervisor.sh from unit tests configuration files.
Add @group locks to easily allow to exclude lock tests on FreeBSD.
Add doc and update README.md.
Merge branch 'feature-10' into release-1.6.0