Merge pull request #1 from noahmorrison/master

Add highscores
Add a .txt extension to doc files

On case-insensitive systems the LEVELS file and levels directory were causing
issues. This also makes it a little easier to read the txt files from GUI file
managers.
Update README.md
Version bump
Update for renamed distrib files
Add function to determine config dir at run time
Use the (more standard??) PATH_MAX and initialize array
Add recursive mkdir function
Ignore .o files
Fix formatting
Reword description of mkpath()
Update highscore file defs
Use runtime config dir for saving/loading scores
Remove debug info
Use non-C99 for initializer
Let my OCD get the best of me
Update changelog
Ignore binary
Add title
Convert to markdown