travis test
pcre tests compatible with 4.01
change build status to point at upstream
begin work on Pcre.full_split

* initial work + types
* basic test cases
oasis spam
add Re_pcre.full_split
update pcre split test
export Re_pcre.quote
expose split
Fix bad re in test

thanks @Drup
Don't use (|>) in Re_pcre.full_split

< 4.01 support
properly detect empty groups
Merge pull request #42 from rgrinberg/pcre_split

Pcre split
Merge pull request #41 from rgrinberg/master

Travis
Improve the opam description.
Merge pull request #46 from Drup/master

Improve the opam description.
Update @c-cube easy tests to run by default
Merge pull request #47 from rgrinberg/enable_easy_tests

Update @c-cube easy tests to run by default
add replace_string
replace_string test