Add per-user customizable locations for cleaning for Disk Cleaner

Add a GUI method to let the user specify folder locations to clean, and with what search mask.

Add internationalization to Disk Cleaner for Disk Cleaner

Add internationalization / multi-language support to Disk Cleaner. Implement this with .po catalog files and launchpad for editing

Implement portaudio as cross-platform audio library for BestPractice

Current 1.0 series is based on Windows MCI. Another step to cross-platform compatibility is the use of a cross-platform audio library. Portaudio seems capable and simple enough.(EDIT: was RTAudio, but couldn't get it to work without pops and clicks in the audio).

Complete cross-platform compatibility for Windows, Linux and Apple for BestPractice

Move away from current Windows-only platform, but use cross-platform libraries instead.

BestPractice's GUI in wxWidgets for BestPractice

Full conversion of the current 1.0 series GUI written with Borland C++ Builder to use wxWidgets. One step closer to cross-platform compatibility