Array#rotate
remove tags
clean code
Setting $? in Kernel#`

although with stubs in place for Process::Status#stopped? and
Process::Status#exited?
Using the existing IO#pid accessor
Unstubbing and doing as JRuby does

for `Process::Status#exited?` and `Process::Status#stopped?`.
NoMethodError is kinda like NotImplementedError, right?
Passing more File.dirname specs
Meant for this to be the assertion
Merge pull request #554 from modcloth/mbh/File.dirname-more-stuff

File.dirname trailing slash (untag specs)
Merge pull request #548 from modcloth/mbh/backtick-process-status

Kernel#` sets $?
Don't ignore seed in Random.allocate
Use space.w_float instead of getclassfor
Whitespace cosmetics in randomobject.py
Simplify argument's coercion in Random.allocate
Untagging more Object#kind_of? specs
Merge pull request #558 from modcloth/mbh/Object#kind_of-untag

Untagging more Object#kind_of? specs
# refactor convert_types
# remove extra whitespace
Merge pull request #559 from kostya/refactor

refactor convert_types