Be explicit in what we accept as options
Prevent making useless symbols.

Groups are concatenated with ':' in Bundler::Settings#without=,
and splited by ':' in Bundler::Settings#without. So replace ' '
with ':' to prevent making useless symbols and other objects.
set $MANPATH in Bundler::Runtime#setup_environment

This lets `bundle exec man ...` show man pages from bundled gems.
Add basic documentation for bin_path and bundle_path
Add documentation for the run method in Bundler::Installer
Flesh out install documentation a bit more
More documentation for the run method on installer
Remove references to sqlite3-ruby, replace with sqlite3
[PERF] Skip resolving if Gemfile has not changed
Cherry pick perf fix from master
Fix bug involving source ordering and pinning
it turns out we only care if they are the same
fix backwards change-detection logic

pairing with @wycats and @indirect
turns out arrays are sensitive to order
unlock when gems are added to a path
slightly less obtuse than carl
update changelog for 1.1.rc.8
Version 1.1.rc.8
fix the changelog date
Merge branch '1-1-stable'

Conflicts:
	lib/bundler/definition.rb
	lib/bundler/source.rb
	spec/bundler/dsl_spec.rb