Bump snapshot version and use clojure 1.6.
Fix README clojars version.
Add *map-delimiter* control var.

The default is now a space (meaning, no delimiter). The var can be set
to a comma (",") for the old behavior. The `set-map-commas!` function is
provided as a convenient way to achieve this.
Split tagged values with a line when the value is a collection.
Improve collection ordering.
Break total-order tests into smaller units.
Fix primitive sort ordering and add tests for class-based sorting.
Add coveralls integration.
Add coveralls badge to README.
Add cloverage plugin to :test profile.
Enable test profile for coveralls integration.
Use branch-specific coveralls badge in README.
Rename :test profile :coverage.
Add set-color-scheme! function for easier REPL control.
Add utility examples to README.
Fix coveralls badge link.
Switch back to png coveralls badge.
Add versioneye badge to README.
Set release version 0.5.0
Merge branch 'release-0.5.0'

Conflicts:
	README.md
	project.clj