Vendorized etc w/ 2.6 support + relative imports
Vendorize untouched copies of PyYAML's 2 and 3 trees.

Update vendorized etcaetera File adapter to import that copy.
Test skeletons for config file loading & hierarchy
Make test keys for Executor config junk not look like the old dot syntax
Use newer attr access syntax for Executor config tests
Tweak
Move high level config tests into Executor since that's where it's gotta happen
Whitespace
More tests
Port more py26 fixes from my etcaetera fork
Moar tests
Link fix for consistent etc docs version
Docstring for docs watch task
Started DDD for config object's API
Test name change
Finish backporting Config tests to docstrings, derp
Add warning
Sorting
Moar tests
Failing medium level test for conf file loading in Executor