adsense 5.x-3.3

This release is mostly to flush out some minor bug-fixes that were available in the dev versions for quite some time.

Changes since DRUPAL-5--3-2:

• Fix #542444: remove sentence in help about client id modules being required, replace it with ad unit generator modules
• Fix #544472: use stristr() instead of stripos() which is not available in PHP4
• Don't cache the adsense blocks
• Fix #606502 by andrewsuth: use drupal_add_js in hook_init() for adsense_click JavaScript
• Fix #658368 by AlexisWilke: disable #wysiwyg in the access page settings
• Fix #819594 by wqmeng: wrong search results path in old search module
• name and description strings in .info files must be wrapped in quotes