Sigh. had to NOT disable these warnings by default because the gcc on our test rig doesn't understand it

While we're fixing warnings / errors, disable this (otherwise helpful) error because we are purposefully making this example file fail for this.

This test case had an error in both examples:
test_FindFunction_WhichIsBroken_ShouldReturnZeroIfItemIsNotInList_WhichWorksEvenInOurBrokenCode

It was supposed to be a list of values that are NOT in the list,
and none of them should be found.  It incorrectly included '1'

If, longer term, the Travis-CI support for 32-bit is inconsistent
the lines that failed are:
 - make -s DEBUG=-m32
 - cd ../example_3 && rake
Add target 'ci' for building examples with -Werror

Delete clang flags that were disabled with -Wno-*

Remove UNITY_FIXTURES option, which was probably not doing what was
originally indended. It was suppressing the test name even in quiet mode.

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.

 *  Updated example 2 readme
 *  Broke up huge line in example 2 makefile

 *  Added example that uses unity test fixture