Don't fix offsets of all frames of player sprite...

...if one or more frames are dehacked. Fixes issue with super shotgun's
muzzle flash in rc-dc.wad. Thanks Da Werecat.

Update version number

Next version will be a small point release, fixing some minor issues.

Use custom titlepic lump in bundled wad

Also move to separate folder.

Minor tweaks to output of mapstats cmd in console

Minor tweaks

Change format specifiers in call to strftime()

But actually do it this time...

Update SDL2.dll

Fix sprites appearing through doors, etc. in some instances

Regression of part of commit 3d482cf.
Thanks again to @Anotherlife.

Check width before pasting text in console

Use SDL-2.0.4-9799