Fixing bug in CWebUser#renewCookie which was causing it to ignore any configuration parameters speicified in user => identityCookie
Fixing CWebUser#restoreFromCookie to respect identityCookie options as well. Adding changelog line
oops, did not notice that changelog entries are ordered by type then number
fixing bug where time() was being added twice to the cookie expiration date. Once before we pass it to CWebUser::saveToCookie, and another time inside the function.
Merge pull request #2328 from f10i/master

Bug in CWebUser#renewCookie if config file contains identityCookie params
Improved documentation for php expressions

Fixes issue #1921
Various documentation and code style fixes
Merge branch 'master' of https://github.com/yiisoft/yii

* 'master' of https://github.com/yiisoft/yii:
  fixing bug where time() was being added twice to the cookie expiration date. Once before we pass it to CWebUser::saveToCookie, and another time inside the function.
  oops, did not notice that changelog entries are ordered by type then number
  Fixing CWebUser#restoreFromCookie to respect identityCookie options as well. Adding changelog line
  Fixing bug in CWebUser#renewCookie which was causing it to ignore any configuration parameters speicified in user => identityCookie
partial german translation update for the guide