duplicate grok dexterity documentation in grok appendix
added grok appendix into the appendix index
removed grok dependency and paragraph about package grok
removed grok import and mention explicitly import directives
remove grok import and emphasized 'model.load'
grok view to browser view and dexterity DisplayForm to dexterity DefaultView
Removed Grok paragraph.
Fixed link to pypi z3c validators.
Fixed z3c.form validator section link.
grok provider decorator replaced by zope directly provides interface.
Grok utitlity replaced by zcml utility directive.
Class based factory.
Mark xml code blocks as xml.
Explicit import and removed DisplayForm reference. Gardening and indentation.
Removed grok static dir paragraph. Renamed confusing 'resource' to 'static'.
Moved unwanted changes from grok appendix dir to docs dir.
Revert "Explicit import and removed DisplayForm reference. Gardening and indentation."

This reverts commit e80e7ce2887757b3ddcc22609ee04d2493d04786.
Revert "Removed grok static dir paragraph. Renamed confusing 'resource' to 'static'."

This reverts commit 9cef6822d8fc9524febe09a9e8fe0a47460b6181.
Merge pull request #135 from plone/cleanup-grok

Replace Grok with Z3/ZCML directives in a subset of the docs.