core,nTox,toxic - Fix for Issue #453. Refactoring w/astyle.

This commit introduces a few things. Basically I didn't like the fact that
although we had a coding style document, no one was following it. See
https://github.com/irungentoo/ProjectTox-Core/issues/453 for more info regarding
that. This commit just marks the first of my efforts to refactor the code base
according to the posted coding style document by introducing an astylerc and a
optional git pre-commit hook.

I propose that users can add this functionality as a  pre-commit hook. More
info is in the README file.

However, this has only been tested on Linux and I imagine should work on OSX as
well. I don't think pre-commit hooks work on Windows, but I may be mistaken.

The future commits I plan are refactoring the source files for other offending
items such as using typedefs. See http://wiki.tox.im/index.php/Coding_Style.

.gitignore

@@ -30,3 +30,6 @@ tags
 
 #netbeans
 nbproject
+
+#astyle
+*.orig

tools/README

@@ -0,0 +1,9 @@
+This directory can house various tools and utilities.
+
+astylerc
+ - This file can be used in the precommit hook to try its best at making the code conform to the coding style document.
+
+pre-commit (*NIX only at the moment)
+ - Lints your file in adherence to the coding style doucment as best as possible in terms of spacing, indenting, etc.
+ - Requires you to have astyle installed.
+ - To use, copy this file to ProjectTox-Core/.git/hooks

tools/astylerc

@@ -0,0 +1,11 @@
+--style=kr
+--pad-header
+--max-code-length=120
+--convert-tabs
+--indent-switches
+--pad-oper
+--align-pointer=name
+--align-reference=name
+--preserve-date
+--lineend=linux
+--break-blocks

tools/pre-commit

@@ -0,0 +1,17 @@
+#!/usr/bin/env sh
+#
+# An example hook script to verify what is about to be committed.
+# Called by "git commit" with no arguments.  The hook should
+# exit with non-zero status after issuing an appropriate message if
+# it wants to stop the commit.
+#
+# To enable this hook, rename this file to "pre-commit".
+
+for file in `git diff-index --diff-filter=ACMR --name-only HEAD`; do
+    if [[ $file == *.c || $file == *.h ]]
+    then
+        echo $file
+        `which astyle` $file --options=tools/astylerc
+        git add $file
+    fi
+done