change of debian jessie and sid downloads
new po files
Merge branch 'master' of github.com:qgis/QGIS-Website
Added donors
adding km_KH language

NOTE: we tried 'km' as language code first.
But that language code is not known to Python yet, throwing an build
exception with Sphinx
That is why we do a language plus country code for khmer.
first khmer po files
better describe opensuse package download
adding some text and links for cpp and python plugins
putting it on the landingpageswq
Added donors
Added a commercial support provider
some po files updated/added
typo
Added a bronze sponsor
Fixed a link in commercial support
Added commercial support image
Update RHEL/CentOS installation instructions
Merge pull request #118 from matthias-kuhn/rhel-install

Update RHEL/CentOS installation instructions
minor fixes
pushing some translations