Remove unused stores.
FEAT: add a clunky freeze/requirements-like feature to enpkg.
BUG: ensure we don't resolve dependencies in --requirements mode.

The major point of this feature is to bypass the dependency mechanism
when we have incompatible dependencies.
ENH: add support for keyring >= 1.1.
BUG: fix handling of old requests package in fetch.
DOC: fix typo in comment.
Merge pull request #130 from enthought/fix_new_keyring_versions

ENH: add support for keyring >= 1.1.
MAINT: add coveralls support for travis-ci.
ENH: actuall push for coverage reports in coverall.io.
MAINT: travis-ci test.
MAINT: travis-ci does not like not having a script entry.
MAINT: vanity commit -- add travis-ci/coverage badges.
Merge pull request #135 from enthought/test_coverage

MAINT: add coveralls support for travis-ci.
MAINT: don't include test coverage in coverate report.
ENH: use the requests compat shim everywhere it is needed.
Merge pull request #134 from enthought/fix_grits_store_handling

BUG: fix handling of old requests package in fetch.
BUG: forgot to add new file to git repo.
Merge branch 'remove-unused-stores'

Conflicts:
	enstaller/store/cache.py
	enstaller/store/local.py
Merge pull request #129 from enthought/freeze_hack

FEAT: add a clunky freeze/requirements-like feature to enpkg.
Merge branch 'master' into test_config_v2