CI-63
auto-generate fab tasks to set environment and roles

+review SYS @jesse
CI-63
fix tests

+review SYS-100
CI-63
fix closure bug

+review SYS-100
CI-63
remove the confab fab task
docs, variable naming

+review SYS-100
Merge branch 'feature/autotasksreturn' into develop
Fix validate.py not creating directories

Conflicts:
	confab/diff.py
	confab/generate.py
	confab/main.py
	confab/pull.py
	confab/push.py

cc: jesse