Add in PCRE dependency to Travis
Merge pull request #2704 from staticfloat/travispcre

Add in PCRE dependency to Travis
pow: remove mention of no-longer-existent function
README.windows file. closes #1926 and closes #2006
fix some formatting in README.windows
Update README for Windows instructions.
Remove mention of D3 from the README. Web REPL is now a separate package.
Remove lighttpd.conf
Typo fix in mathematical operations manual page
Merge pull request #2711 from meggermo/master

typo fix in manual
fix #2712
Merge pull request #2706 from KDr2/kd/develop

GC stats print bugfix (when GC_FINAL_STATS defined)