Remove Tailor as development dependency.
Update testing/health project dependencies.

* Extract guard-related dependencies to Gemfile
* Pin version of cane gem
* Add finstyle gem
* Update Guardfile with new guard strategy (red/green)
* Add CodeClimate test coverage support
* Expand TravisCI test matrix
Use a next to skip iteration in each block (style).
Replace or flow control with a conditional (style).
Refactor private method name in Releaser (style).
Refactor rename method param to signal it is unused (style).
Prefer slightly less evil instance_eval over eval (style).
Prefer english constants to perl symbols (style).
Use backslash string line continuation syntax vs. concatenation (style).
Indent case relative to end keyword (style).
Drop space before semicolon (style).
Prefer $w[..] string style lists (style).
Use plain old string syntax in gemspect (style).
Fix multiline hash syntax (style).
Remove unused assignment (style).
Ignore long method in common spec helper (style).
Fix inner block spacing (style).
Fix hash formatting & line length (style).
Remove redundant curly braces for hash parameter (style).
Make regexp literal more explict as a method parameter (style).