Installer check setting value, if install-location is auto.
[Issue#] P130919-00555
[Problem] WebApp install to internal storage
even if installation storage set to external on setting menu.
[Cause] Installer doesn't check setting value about installation storage.
[Solution] Installer will check setting value about install-location.
[Description]
Two values to determine the location of the installation
1. install location element value in config.xml, internal-only|auto|preper-external
2. install location setting menu in target, internal|SD card
Installed on SD card conditions
1. config type sets preper_external & inserted MMC
2. config type sets auto & target type sets SD card
3. config type sets auto & target type sets internal & out of internal memory
Change-Id: I7dfb193a72e3e765b9d908574246f2212a5e6c4e