make verbage consistent
strip root from dst if its there
finder needs to list static bundles in order to find it during collectstatic

Specifically, if used with CachedStaticFilesStorage, it will hash static files
for proper cache busting.  Otherwise, collectstatic has no idea about the
created bundles.
backwards compatibility with old name "preprocessors"
precompilers is really preprocessors
Merge branch 'rename_preprocessors' into master-dlamotte
Merge branch 'strip_root_from_dst' into master-dlamotte

Conflicts:
	src/static_compiler/management/commands/compilestatic.py
Merge branch 'make_collectstatic_work' into master-dlamotte