lib/Makefile.am,lib/bg.po,src/message.c: Add start of bulgarian
translation, with messages take from therion.
lib/checkshortcut.pl: Fix shortcut checking to allow for non-ASCII
shortcuts.
src/message.c: Hook up Indonesian translation to be used when
Windows is set to Indonesian.
lib/en_US.po: Translate "elevation" to "profile" in a couple of
places where we weren't.
src/gla-gl.cc: Split log_fl_error helper function out of
CHECK_GL_ERROR, which will reduce code size and also the number of
deprecation warnings about gluErrorString on Mac OS X 10.9.
buildmacosx.sh: Update to use wx 3.0.0, and add a checksum check for
the downloaded wx sources.  Thanks to David A. Riggs for his work on
getting the Mac OS X build going with wx 3.0.0.
lib/po-to-msg.pl: Fix menu shortcut check to allow for non-ASCII
shortcuts.  Remove code to check for menu shortcuts marked with '@'
as we no longer do that.
lib/: More translation updates.
lib/,src/netskel.c,tests/: Drop "between nodes" from the progress
messages while solving the survey network, as the extra words don't
make the meaning clearer, and "node" doesn't mean exactly the same
here as the summary of nodes printed at the end of processing, which
is a bit confusing.