* origin/master: (104 commits)
  Fixed typo in query builder and reverted changes to DbCache.php
  added note about enabling APC cache for CLI
  more assertions for cache test
  fixed dbcache multiget
  fixed Html test under Windows (line endings)
  fixed DB quoting typo
  create a webapp in test bootstrap
  updated expected exception message
  Added a basic app.
  initial implementation of asset command.
  script WIP
  script command WIP
  Fixed bug in yiic.php. Refactoring AssetConverter.
  adjusted default app layout
  refactoring and documentation for asset/script management.
  Finished asset converter.
  removed unnecessary code, added comment about displaying errors
  better handling of errors during rendering an error
  safer exception rendering
  turn asset manager into a getter.
  ...

Refactoring AssetConverter.