added logging to file
added varargs header
Update getFileSizeString()

The "setprecision()" call used to do nothing because we printed integers (converts to doubles now).
Manually expanding multiplication only removes readability, the compiler will do these simple optimizations.
"else if" is exponentially more clean than the old "if"s.
Also fixed (eg "3.100 GB") looks messier than without fixed (eg "3.1 GB")
merged master
Merge branch 'fix_log'
Merge pull request #49 from iitalics/patch-1

Update getFileSizeString()
add torrent removal
Merge pull request #51 from IGI-111/remove

Torrent Removal
fix a bug where torrents were not removed properly
format everything
Merge pull request #53 from IGI-111/bugfix

Fix Torrent Removal Bug
added spec.md and removed redundant line in format.sh