am 457738e6: Merge "docs: add information about known issues in resource matching for screen density and system version. Add section about providing compatibility for multiple devices" into froyo

Merge commit '457738e628ee4d165014996bcf4e8d1983ac5929' into gingerbread

* commit '457738e628ee4d165014996bcf4e8d1983ac5929':
  docs: add information about known issues in resource matching