Feature/fix android sdk build tools path

# build-tools 19.1.0 path

The build-tools weren't in the PATH. These include tools like aapt which android-studio need to have on the PATH.

# Fix i386 Loaded

The build-tools, such as `aapt`, report a misleading error 'File not found'.

# Fix ia32 dependancies

The build-tools, such as `aapt`, report missing i386 libraries. These used to be provided by ia32-libs.