fixing markdown/textile php script mime-types
Fixes a bug where saving an extisting page causes a duplicate slug error
Merge pull request #470 from NicNLD/slug-patch

Fixes a bug where saving an extisting page causes a duplicate slug error
Merge pull request #471 from marekmurawski/mime-types

Fixing markdown/textile php config script mime-types
Adding travis-ci build status image link
Add basic selenium config to travis-ci config file
Translated (deprecated) POSIX functions to PCRE, fixing #441
Merge pull request #475 from NicNLD/upload-regex

Translates (deprecated) POSIX functions to PCRE, fixing #441