Fixed `calltip` attribute to use/enable proper style.
Removed `calltipbg` attribute as it's replaced by `calltip.bg`.
Changed the order of applying styles to apply the main style last.
Added `auxwindow` attribute to style auxiliary windows.
Updated scheme picker to apply styles to all windows.
Fixed lunching zbstudio from folders with spaces; thanks to @Asmageddon.
Fixed handling of getenv returning general message (Mobdebug v0.5511).

Some environments return an error message ("getenv is not supported"),
which needs to be handled when a port number is expected.
Updated Corona API for v2014.2189.
Updated Marmalade Quick API for v7.2.