Split the page with all validator classes

The page is too long. (http://framework.zend.com/manual/2.2/en/modules/zend.validator.set.html)
Remove validator classes from index
Update zend.http.client.adapters.rst

There is no request() method in Zend\Http\Client its actually send()
Update zend.mvc.intro.rst

Application::send() is deprecated and has no impact.
Update zend.mvc.intro.rst
Remove obsolete module paramater in paginator tut
Update zend.mvc.plugins.rst

fixed a typo
Merge and Close #1385
Merge and Close #1384
Merge and Close #1338
Merge and Close #1386
Merge and Close #1333

Conflicts:
	docs/languages/en/modules/zend.validator.set.rst
Merge branch 'merge/#1388-mass-merge-#1385-#1384-#1338-#1386-#1333'

Close #1388
Close #1385
Close #1384
Close #1338
Close #1386
Close #1333
Add missing documentation for redis cache storage adapter
Merge branch 'feature/#1370-redis-cache-storage-adapter-docs'

Close #1370
Merge pull request #2 from zendframework/master

update zf2 doc