fix requirement in the spec and gemspec

plugin do not use json, no mention of rspec or mocha in the code
or rakefile, and that's the stickshift-common gem that's used
Move v2 mysql setup invocation marker to gear data directory
The v2 cartridge needs to pull in the ruby-1.8 dependencies as well

Also, I sorts these more alphabetically by section.
Bug 952513
Merge pull request #2161 from pmorie/dev/v2_mysql

Merged by openshift-bot
Merge pull request #2162 from brenton/specs3

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Merge pull request #2163 from bdecoste/master

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Merge pull request #535 from mscherer/fix_uplift_gem

Merged by openshift-bot