renamed .htaccess to .htaccess-dist and ignored .htaccess afterwards (#5428)

renamed .htaccess to .htaccess-dist and ignored .htaccess afterwards (#5428)

* renamed .htaccess to .htaccess-dist and ignored .htaccess afterwards. This
allows local changes to it without having a dirty checkout directory.

Signed-off-by: Roland Häder <roland@mxchange.org>
* Some fixes:
- removed non-neutral words
- added examples for Linux/Windows

* Better documentation and added note about **not** renaming the file.

Signed-off-by: Roland Häder <roland@mxchange.org>