0.0.48
Allow entry of numbers with negative exponents
Change some #define lists to enums
Prevent multiple inclusion of header files
Added bit shift and bitwise and/or/xor operators
Changed the stack/queue implementation again
Changed the save file format to save the actual data rather than the printed
	data
Changed the default interface to GTK+
Allow entry of exponentials in floats without a decimal point
Added argument checks for asin/acos
Fixed a bug with unterminated strings
0.0.47
Switched the token data types to use long longs and long doubles
Code cleanups and fixed some warnings
Allow you to enter long hex numbers
Compile-time option whether to compile in indicator pixmaps
Changed 'fix' handling
Made the stack insert its text with the fg[GTK_STATE_ACTIVE] color.  Not
	perfect, but it works somewhat better.
Allow nested shortcuts
0.0.46
Added toolbar to GTK+ interface
Added command line and rc file handling
0.0.45
Fixed some bugs in the GTK+ interface
Added shortcuts
Bound F1-F12 to "1 sc" to "12 sc"
0.0.44
Added GTK+ interface
0.0.43 
Fixed bug with negative numbers in saved files
Changed stack/dequeue interface to something sane
0.0.42 - original version
