Add packages and support for SLES12
Add support for Chef 11 in SLES12
Merge pull request #103 from mjura/sles12

Add support for Chef 11 and SLES12 postgresql
Short fix for SUSE version
Merge pull request #105 from mjura/sle12-fix

Short fix for SUSE version
Fix last change: install the right rubygem-pg variant
Merge pull request #104 from dirkmueller/master

Fix last change: install the right rubygem-pg variant
Fixed permissions for various files