Squashed 'source/misc/slre/' content from commit 20712e9

git-subtree-dir: source/misc/slre
git-subtree-split: 20712e9fef0cc51eac3fac80cdb930f898dc19f9
Added subtree of slre library for regex.
Fixed palette loading, now uses correct directory.  Unif board names
almost all regex'd now.
Finished unif regex's.  Added palette section in config dialog.  Not
functional yet.
Forgot to add slre to the makefile.  Fixed permission problem when creating directories.
Modified .gitignore
Finished changing .gitignore.  Added Death Race mapper.
Added mapper 57 (supergk board) semi-working.
Added ntsc/pal support.  Dendy added but untested.
Added pal support into the apu.  Introduced bug in pal code to write to
memory, corrupting everywhere, bug lies dormant in ntsc mode.
Added PAL-ZZ board (mapper 37).
Fixed makefile and gitignore.
Incremented version and fixed Makefile.
Began work with updated video system per pixel instead of per line.
Fixed Linux/GCC segmentation fault.
Added SDL video_updatepixel function, Win32 needs implemented.
Refactored the rendering flag of the PPU.
Added --help command line parameter.
Fixed win32 video_updatepixel function.
Added install target to Makefile to install user data for current user.
Added two new (untested) mappers.
Fixed odd bug with parsing commands on amd64 targets.
Fixed error with calling make.