Implement option to disable shell escaping.

re: #788
Format tweak
Merge branch 'master' into 864-int
Changelog re #844, #864
Hide moar during tests n00b
adds flag use_glob to put, to allow raw file paths re: #812
Merge branch '1.6'

Conflicts:
	docs/changelog.rst
Add changelog, versionchanged re #869, #812
Move doc of use_glob closer to desc of default globbing

Re #869, #812
Remove env var checking behavior for use_glob.

There was no env var and I actually don't think it makes
sense for this to be globally true/false.

Re #869, #812
Merge branch '869-int'
GitHub Nose link
Merge pull request #886 from darsadow/bugfix/nose-link

GitHub Nose link
Merge branch '1.6'
Merge branch 'master' of github.com:fabric/fabric
Merge branch '1.6'

Conflicts:
	docs/changelog.rst
	fabric/operations.py
Merge branch '1.6'
add cross-references from env vars to CLI options
fix inconsistencies in env var to CLI crossrefs
fix a few doc typos and formatting errors