At the start of unity_free(), check mem for NULL, and return immediately
if it is, so we don't crash in this case. This mimics the behaviour of
most free() implementations. Closes #135.
Signed-off-by: NGergely Nagy <algernon@madhouse-project.org>

Primarily -
* Added "static" to static functions.
* Added proper signature with "void" to functions without arguments.
* Marked unused arguments with "(void)".
* Removed entirely unused static functions.
* Added "const" to preserve const-correctness.
* Added function prototypes for external functions.

updating CLI for unity_fixture.h to handle unknown command line arguments (instead of entering an infinite loop)

     Likewise, place all function prototypes before statements.
     These changes support Microsoft Visual Studio 2008 Express Edition,
       which follows C89-style rules.

git-svn-id: http://unity.svn.sourceforge.net/svnroot/unity/trunk@124 e7d17a6e-8845-0410-bbbc-c8efb4fdad7e

git-svn-id: http://unity.svn.sourceforge.net/svnroot/unity/trunk@111 e7d17a6e-8845-0410-bbbc-c8efb4fdad7e

- fixed a few bugs in fixtures to get it to pass against our standard compilers
- added extern of OUTPUT_CHAR method to keep compilers from complaining

git-svn-id: http://unity.svn.sourceforge.net/svnroot/unity/trunk@107 e7d17a6e-8845-0410-bbbc-c8efb4fdad7e

git-svn-id: http://unity.svn.sourceforge.net/svnroot/unity/trunk@106 e7d17a6e-8845-0410-bbbc-c8efb4fdad7e