Update dependecy to match other files.

This file had collins_client set at 0.2.9, but the others had 0.2.10, so I'm bumping that dependency.
Bump version here, as it has been bumped in the gemspec.
Read version from file, rather than hard coding.
Read Version from file for collins-shell
Read version from file for collins_notify.
Read version from file for collins_state.
Instead of just reading the VERISON file, read the first line, and strip it.
Don't worry about whitespace, since gemspec seems to handle it correctly.
Removing rvmrc files. Let people manage their own ruby envs
Merge pull request #144 from tumblr/will-update-gems

Will update gems