moved saving to nTox.c
added data file to gitignore
Merge pull request #83 from ollieh/savingloadingfiles

Saving messenger state in nTox
Merge pull request #84 from nurupo/master

Improved build system
Fixed warnings.
Adds the option 'nokey' to disable loading and saving keys, for debugging purposes
Merge pull request #87 from TrevorDorl/master

Adds the option 'nokey' to disable loading and saving keys, for debuggin...
Added saving and loading of keys by default