Update html.rst

Added demonstration of using routing in addCrumb
Update html.rst
[fr] Follow #1279

Update models.rst
[fr] Follow #1281

Remove versionchanged notice from 1.x
Merge pull request #1292 from alex-m/patch-1

Update html.rst
[fr] Follow e9fcb086cdbe3744e518bcc2876445d5ad2dd7f0

Remove deprecated method.
[fr] Follow #1283

Update retrieving-your-data.rst
[fr] Follow #1284

clear up ambiguity on what to include
[fr] Follow #1285

Update info regarding layout key setting in email config.
[fr] Follow #1287

Update 2-5-migration-guide.rst
[fr] Follow #1290

Update access-control-lists.rst; Fixes #1289
[fr] Follow #1292

Update html.rst