README.md: minor modification
backup.c: added log statement, moved location of an allocation failure check
Makefile: preparing it for scan-build usage
Adding a very simple script for using scan-build
Switched to getopt_long for commandline-argument processing
processArguments.c: Changed the debug logging's mentions of short options to long options, for readability
global.h: Re-ordered and provided additional comments
Fixed #12: Make the time between each run (30 seconds by default) configurable