Description of --syncroot

Hope this fixes #70.
Description of --syncroot in man page

See #70.
.git-ftp-include tests
Merge pull request #100 from mkllnk/tests-for-include

.git-ftp-include tests
Merge pull request #96 from mkllnk/patch-1

Description of --syncroot
Merge branch 'develop' of git-ftp into develop