Support git via SSH and HTTP

Simple and obvious patch who workforus® in production
Merge pull request #958 from guilhem/patch-1

Support git via SSH and HTTP
Add documentation for git URL
Merge pull request #959 from guilhem/patch-1

Add documentation for git URL
added template SLES 11 SP3 x64_64
Merge pull request #960 from xalopp/sles11sp3

added template SLES 11 SP3 x64_64
Add basic CentOS 7.0-1406 netinstall support
Merge pull request #963 from DavidS/centos7

Add basic CentOS 7.0-1406 netinstall support
fixed the template for freebsd-9.1-RELEASE-amd64
fixed a couple port builds
Merge pull request #967 from illogicalimbecile/fix_freebsd-9.1-RELEASE-amd64

Fix freebsd 9.1 release amd64
added a template for freebsd-9.2-RELEASE-amd using UFS
Updated Debian definitions (new Debian 7.6)
Merge pull request #973 from leopoiroux/master

Updated Debian definitions (new Debian 7.6)
Merge pull request #969 from illogicalimbecile/add_freebsd-9.2-RELEASE-amd64

Added a template for freebsd-9.2-RELEASE-amd using UFS.
Update requirements.md

it's -> its
Merge pull request #982 from dumolibr/patch-1

Update requirements.md
Merge remote-tracking branch 'upstream/master'