Changes from "\0x16" before, makes it easier to copy strings from output

 The C preprocessor cannot use sizeof in #if etc.

Change-Id: I901bf192d3c06457d67c6d3a64bdb9aea22c53c2

- Added ability to surround filter strings in either type of quotes
- Added ability to filter on multiple test strings as a comma delimited list
- Added ability to filter on test_file:test_name
- Added ability to use alternate syntax for filter of -f="blah"

Updated method of testing generate_test_runner script to be a FUNCTIONAL test instead of a perfect code match. Backfilled most tests and added some coverage not previously present. Still need to test new command line args and a few cmock details.

Script verification hasn't been added yet.

As recommended in PR #193

add UNITY_OUTPUT_FLUSH to make sure we get the output we need on aborted tests and whatnot.

 Add test for failure count and UnityEnd return value
 Cover printing escape codes with length parameter
 Full statement coverage

 Remove what looks like an overflow check. 'divisor' cannot overflow
  since it is the same type as 'number' and cannot be greater.

 For easier automation and searching for a test suite failure

 This solves the warnings from -Wredundant-decls when overriding the
  OUTPUT function with a function declared in another header.
 It's better this is the non-default option, since using it requires either
  a declaration of the new function OR a preprocessor guard on declaring
  UNITY_OUTPUT_CHAR (as in unity.c here), in every file using the function.
 See Pull Request #185 for more.

 These were aimed at preventing the internals header from declaring
  a prototype for 'int UNITY_OUTPUT_CHAR(int);'. The second part fixed
  an omitted declaration in the tests caused by the first commit.
 Will replace the default behavior & add an option for this in next commit

 Revert the previous commit. Add tests for extended enum cases.
 Fix crash due to accessing 'trait_names' array out of bounds.
 Adding an extra invalid value to the end of an enum causes '-Wswitch' flag
  to warn unless there is a switch default case - also enabled by '-Wall'.

 The clang compiler warns here with -Wunreachable-code
 The enum's switch statement covers all cases, so default is unused
 Leave the break in the code as a comment, to be more clear
 The history is this default case was added in f6bb7162 - compiler warning.
 Then the break was added in c6dc96f3.

 Add extern UnityFixture in internals header. Add C89 target in Makefile
 clang will show these warnings but can suppress "//" with -Wno-comment.

With a buffer long enough, no truncation should be neccesary to format floats.

Buffer length is user settable by defining UNITY_VERBOSE_NUMBER_MAX_LENGTH,
otherwise a sensible default is used based on desired precision.

See: http://stackoverflow.com/a/7235717

UnityPrintFloat() overflowed with some inputs (eg. FLT_MAX)

 Using gcc 4.8 on Ubuntu 14

 To expose warnings use -Wconversion -m32, and *not* -D UNITY_SUPPORT_64
 In 32-bit mode, the variable and parameter are the same width, so sign
  conversion is implicit. In 64-bit, implicit conversion is clean.

 Make subtraction result unsigned, change prototype & casts in internals.
 If "actual - expected" overflowed, it wrapped to a negative number,
  but would fit in an unsigned type, example is INT_MAX - (-1) = INT_MIN
 For correctness, 'delta' should be unsigned too. Passing in a negative
  number always passed. The delta can be between INT_MAX & UINT_MAX.

 Now that the project is using .gitattributes, get rid of CRLF in the repo.

- tweak docs

 'divisor' ranges from 1 to 1e18, representable by a long or unsigned long
 'number' becomes negative when cast as signed, so remove the cast and
  keep conversion warnings quiet by turning 'divisor' unsigned