Bit's WP 34S and 31S patches and custom binaries (version: r3802 20150805-1)

[Bit]

I've updated the builds and added a new feature: Significant figures display modes. As requested, I now publish wp34s.op and wp34s-lib.dat files for those who'd like to use library functions in the emulator or compile programs.

The version reported by VERS indicates with a 'B' that it's a modified binary and the following notation is used to differentiate various builds: The printer symbol before the SVN revision number indicates infrared-enabled binaries as usual, 'C' indicates a binary that requires the crystal oscillator (whether or not it has the stopwatch included), 'N' indicates a binary that doesn't support the crystal and won't use it even if present, and no symbol indicates a binary that can optionally make use of the crystal.