[#1311] Add method to control content validation with env var.
Set ALLURA_VALIDATION to "none" to run no validation, to "all" to run all validation checks, or to comma-separate list of checks to run (currently js and html5 are supported).
Signed-off-by: Paul Sokolovsky psokolovsky@geek.net
Authored by: Paul Sokolovsky 2011-01-27
Parent(s): [6e738d]
Child(ren): [27089c][c020b9]
