initial source code files
setbits function complete
completed invert.c
rightrot.c working but bad method for determing field width
completed fbitcount.c with check for zero and completed ternary lower
bin search completed with one test in the loop and two tests out of the loop, no timing data
escape.c replaces tabs and newlines with their respective escape sequences
descape using switch statements complete and tested
expand.c completed and tested
fixed bug in handling of leading '-' in expand.c
added all .c files and .txt files for testing.  Made a .gitignore file to ignore compiled code
improved expand to work for increasing or decreasing characters
added a README.txt file
removed the README.txt file
Merge branch 'master' of https://github.com/bmkessler/The_C_Programming_Language