bump development version
made some syntax fixes
fixed name of the created release archive
translated any source code comments into English
keep wrapper settings in a global variable for further use
prepare version 0.5
tested against WebsiteBaker / BlackCat CMS / LEPTON CMS

- tested against the latest version of WebsiteBaker (2.8.3 SP3)
- tested against the latest version of BlackCat CMS (1.0.4)
- tested against the latest version of LEPTON CMS (1.3.2)
Finish v0.5