Add tests for uncovered lines

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

 By removing the call to the Conclude function the code is simplified
  and doesn't depend on global state updates. Tests that are ignored
  after the testBody is called still output the right EOL.

 This fixes #168. See that github.com issue for more discussion.
 Allows the tests to build when putchar() is defined as a macro
  with parenthesis around it, as in the ARM embedded gcc compiler.

 Using gcc 4.8 on Ubuntu 14

 Gets rid of warnings about extern with clang's -Weverything

 Turn on -Wconversion in Makefile, fix all warnings

 Comment out -Wconversion for now, since the build would fail

 These wrapper functions should be in Unity core if warranted.
 Use the Unity struct directly for access, or consider macro functions

 The old failure would print the line in unity_fixture.c, not very useful.
 Now using CurrentTestLineNumber, which is better.

 There was already some space reserved as a guard, added check for writes
 before the beginning of the buffer. Did not change the 'overrun' message.
 Underrun buffer writes are likely to be a more rare case.

 This feature removes the dependency on malloc/free for constrained
  embedded systems without a heap. It uses a static heap inside
  Unity Fixture. Setting UNITY_INTERNAL_HEAP_SIZE_BYTES sizes the heap.
 Add tests for new option, add targets to makefile for running tests.
 UNITY_FIXTURE_MALLOC for Fixture use only, remove from unity_output_Spy.c.

 Consistent use of one-liners and NULL

 Help failures in the spy by adding filename and message to output

 For redefinition of UNITY_FIXTURE_MALLOC/...FREE use both or replace both.
 Clean up whitespace, remaining void*, and comment.

 Delete unused variables and empty functions
 Make setUp & tearDown (used in Unity core) optionally defined
  if 'weak' linking is present

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

 Add CFLAGS in Fixture Makefile to catch C99 rules with '-pedantic'

 Ignore tests that need the Spy if we are not building with it

 No rake and ruby required to build existing tests

 Don't set CurrentTestFailed = 0 at end, move before last check
 These tests now fail if the output_Spy is not used instead of putchar()

 Revert part of commit 77af37ad, code looked like a temporary change
 The behavior is back to the original, printing "....!..." in quiet mode
 Added an ignored test to Fixture for visual inspection

 Defining a group_runner which calls group_runner_runAll() is redundant

 Using sizeof() instead of constant 4, makes code less fragile to change
 Change name of 'guard' in Guard struct to 'guard_space'

- Cleaned up a casting warning error
- Removed a couple semicolons from the end of macros SHAME!

This helps clarity and is more obvious, it looks like a print function

Delete the { ;} braces and semicolon from UNITY_PRINT_EOL to give it expected
  behavior: 1) requires a semicolon 2) works in one-liner if-else statements
If you need "\r\n" for EOL, define as the following to get the same behavior:
  do{UNITY_OUTPUT_CHAR('\r'); UNITY_OUTPUT_CHAR('\n');}while(0)

Added parentheses around all macro parameters to resolve MISRA 2004
rule 19.10, "in the definition of a function-like macro, each instance
of a parameter shall be enclosed in parenthesis" as tested with the
IAR EW for 8051 compiler, version 9.20.2.

The only questionable change is in "unity_fixture.h" where the nested
macro DECLARE_TEST_CASE in RUN_TEST_CASE prevents surrounding params
"group" and "name" with parentheses.
However, it appears that macro DECLARE_TEST_CASE isn't used elsewhere,
so I eliminated DECLARE_TEST_CASE and put its expansion directly in
RUN_TEST_CASE.  Now the following header files pass rule 19.10:
* unity.h
* unity_internals.h
* unity_fixture.h

For my own project, this change to the Unity test framework allows me
to include my unit test code to be tested against MISRA rules as well,
instead of just production code, to help enforce style and team
guidelines.

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>

Output used headers from test runner generator

Ignored tests are now correctly skipped if not selected by test name or
by group name.