Fail puppet-lint on warnings

Puppet-lint will now fail if there is any warnings.

Disable 'class_inherits_from_params_class' check.

Change-Id: Ia1d7fa5109178f040b00abcdb3f7d84c4bdf58b4
(cherry picked from commit 48ac3fb090451b9c446a438ba5fbdc1999cb167a)
Add syslog support to the keystone module

Change-Id: I64a1959b88f1a5d7a8ce96bd1a0dbab2e9723a00
(cherry picked from commit 64474d170d5f7b38d4a221d1ade6009f44147c79)
pin to posgresql 2.5 module

b/c later than that breaks backwards
compatibility.

Change-Id: I7f8c5ad479f49c266911b2fdbc8da9eba5ddb65f
Merge branch 'stable/grizzly' of https://github.com/stackforge/puppet-keystone into grizzly