Log Message:
Update to 5.95

Upstream changes:
5.95  Sat Jan 10 12:15:36 MST 2015
	- modified the bit-ordering test (ref. t/bitorder.t)
		-- supplied directory-change preamble for CORE builds

5.94  Sat Jan 10 00:45:28 MST 2015
	- added support for threaded builds
		-- PERL_GET_NO_CONTEXT, pTHX_, aTHX_, etc.
		-- employed 'const' storage class where possible
		-- ref. rt.cpan.org #101260
	- simplified shabits() routine (bitwise input buffering)
		-- slightly less efficient but easier to understand
		-- ref. rt.cpan.org #101344
	- minor documentation tweaks and additions