initDrupal does not move the .gitignore from web_init to current dir

We need the .gitignore from the web_init folder in our projects and the command: mv web_init/* does not mv files starting with "."

The change is to replace the somewhat simple command mv web_init/* && rm -rf web_init to a bit more complex but better working: rm -rf web_init/.git && find web_init/ -mindepth 1 -maxdepth 1 -exec mv -t ./ -- {} + && rm -rf web_init