Change Hash Pointer snippet shortcut (⌃.)

Corrects a conflict with the `Toggle ERb Tags` command, fixes #57.
Allow all forms of method names in New Method (⇧↩)

Before we just used the current word which doesn't match all possible method names (self.foo or foo! for instance). Now uses the current_word library to allow any possible method name with the expression taken from the grammar. Fixes #59.
fixup! Ensure system ruby is used for “RubyMate”

Closes #60
Merge branch 'textmate'