Fixes to HTTP functions to return proper HTTP body and headers:

Fixes to HTTP functions to return proper HTTP body and headers:
- Emptied to .htaccess files to allow accessing doxygen documentation (html)
- The first "$response = array('', '', '')" line caused to much trouble
- Use "strlen($line) == 0" instead of "empty($line)" or else \r\n will be
  detected as empty
- Removed superfluious empty line removal block
- Fixed broken HTTP headers
- Added \r\n to them to mimic header->body
- TODOs.txt updated