update to version 0.2

setup.py:

* -fno-strict-aliasing compiler flag added

_pcre.Pattern:

* object initialization in tp_init, not in tp_new
* tp_call removed, matching is now done my _pcre.Match constructor
* loads() removed, tp_init's "loads" argument is used instead
* "regs" attribute added
* fixed size objects, should fix alignment errors

_pcre.Match:

* tp_init added, takes Pattern, string, etc. and performs the match
* raises _pcre.NoMatch for PCRE_ERROR_NOMATCH error
* fixed size objects, should fix alignment errors

pcre.Pattern:

* _match_type removed, match() / search() create pcre.Match directly
* match() / search() turn NoMatch exception into None result
* edge cases in split() fixed
* edge cases in findall() fixed
* edge cases in sub() / subn() fixed
* pickable
* eq/ne comparison supported

pcre.escape_template() added

pcre.VERBOSE (X) added

pcre.__version__ is now the version of python-pcre and not the PCRE
library version; the latter is now in pcre.__pcre_version__

tested with PCRE 8.34