Fix custom message for 64bit WITHIN_MESSAGE macros (thanks Martyn)

Output used headers from test runner generator

Fixes compiler warning about comparison of signed/unsigned

"usage" output to show .py ext instead of .rb

since this is a python port of "unity_test_summary.rb" the console usage output should say "unity_test_summary.py" instead

the test runner generator now has the ability to also output a header file for the tests, which can get pulled into the test itself if desired.

protect against capturing both declaration and definitions and therefore creating a runner which runs that test twice.

INTPTR_MAX is defined as nothing on some targets (looking at you HP-UX) and therefore these lines would crash. Adding 0 to the check makes these lines always run.

Added back TEST_ASSERT_EQUAL_STRING_MESSAGE() which was (accidentally?) removed some time ago.

Use UNITY_PTR_ATTRIBUTE() in one place where it was (accidentally?) not used.

This eliminates a compiler warning for certain compilers.

Added ability to get number of ignored tests and total number of tests.

Bug fix - ignored tests were incorrectly counted when not selected for running. (Thanks!)

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

Fixes #118: unity_output_Spy should use the platform-agnostic macros for memory.

Fixes issues #3 and #116 (Thanks!)

Fixes #116: Allow overrides of the Unity Fixture's memory functions. This enables custom heap implementations to be used with the Unity Fixture.

Fixes #3: unity_fixture tests don't build. unity.c and unity_fixture_malloc_overrides.h neglected to include <stddef.h> even though the reference 'size_t' and 'NULL'.

Avoid warnings when casting pointers in array comparisons (dancing between warnings)

    - casting to a (void*) was giving warnings to some compilers about double casting
    - casting from a u8 to u16/32/64 was giving warnings about changing alignment requirements

New asserter: TEST_ASSERT_EQUAL_STRING_LEN

Reverting of redundant castings, Fixed -Wcast-qual warnings

Double castings look ugly. And if Unity is compiled with -Wcast-qual flag these type castings produce a lot of warnings:
unity/src/unity.c:490:80: warning: cast discards ‘__attribute__((const))’ qualifier from pointer target type [-Wcast-qual]
                     UnityPrintNumberByStyle(*(UNITY_PTR_ATTRIBUTE const _US16*)(void*)ptr_exp, style);
                                                                                ^

Compares two strings until maximum n bytes (i.e. strncmp()).

Added break out of system vs local includes for enhanced include-based dependency extraction to aid new cmock Make task/build generation.
Bumber build and version info since new external capability added for querying includes.