Add missing newlines at EOF in sources

(missing newlines break build due to -Werror)
Fix "comparison is always true due to limited range of data type" warning
Update readme.md

Basically, a few words tweaked here and there, to make the file more gramatically correct.
Update nTox.c

Made the help message a string type.
Add detection of required libraries
Fixed cpu usage
Adding homebrew commands to INSTALL
stat file before attempting to open
Create start_guide.de.md

Translated the original small documentation to german.
Create start_guide.md

Written by charmlesscoin.
Fix space/tab indentation
NaCl compiling option
Wrote the commands down and a 'start up' guide.
Merge pull request #206 from pflo/master

Added the short documentations
Merge pull request #205 from mhinz/fix-indent

Fix space/tab indentation
Merge pull request #201 from blast-hardcheese/master

Adding homebrew commands to INSTALL
Merge pull request #200 from jquadrin/master

stat file before attempting to open
Merge pull request #193 from Astonex/master

Fixed cpu usage
Merge pull request #191 from theshadowfog/patch-6

Update nTox.c
Merge pull request #190 from pyrobisqit/patch-1

Update readme.md