update .gitignore
syntax changes to caf.r
break out individual functions in caf.r into stand-alone files (one file per function)
break out each function in call_c.r into one file per function
clean up syntax for createSpace.R
break out functions in createSpace.R into individual functions per file
syntax cleanup for exprFileMisc.R
break out functions in exprFileMisc.R into individual functions per file
syntax cleanup for probeSummarization.R
fix dumb syntax errors when re-naming files and functions