Add webhelpers2 dependency, use it for most things

still using webhelpers for certain things yet, hopefully can get rid of that soon

docs/conf.py

@@ -41,6 +41,7 @@ extensions = [
 intersphinx_mapping = {
     # TODO: Add this back, when the FA site is back online...
     #'formalchemy': ('http://docs.formalchemy.org/formalchemy/', None),
+    'webhelpers2': ('https://webhelpers2.readthedocs.io/en/latest/', None),
 }
 
 # Add any paths that contain templates here, relative to this directory.