dm:create and dm:drop did not pass the arguments
to the #system correctly.  Using the array approach that is
being used for the mysql adapter.
Merge pull request #1279 from Ortuna/issue-1264

dm:create and dm:drop did not pass the arguments to the #system correctly
Update changelog for 0.11.2 impending release
Bumped version to 0.11.2
Added missing comma to spec_helper.rb generation
Merge pull request #1297 from lmorduch/master

Added missing comma to spec_helper.rb when generated using the -t command