Set default time zone to avoid zip warnings.
Bugfix: quixplorer prints error on 0 file download.

quixplorer know shows an error message when no item has been
selected while using the "download selected" function.
Bugfix: SECURITY FIX: download as zip may grant access to any files.

This bugfix removes a vulnerability bug of quixplorer from which
any file in your system (which is readable to the web process) may
be downloaded from your system.

- Refactored downloading and access right controlling.
- Fixed download and path handling.

Closes #21
** Introducing radish testing **

- First running system test using php directly and testframe.
- SystemTest 002: run download function basically
- Added *.pyc to .gitignore
- Updated tests for error catching
- Testing: removed output log from step logging.
- Testing: +expect/reject
- Improved testing output.
- Improved result checking.
- Binary testing.
- Adapted test 002 to desired interface behavior.
    I only get a common message "not allowed to access", regardless
    of wether the file is really not existing or the user has no
    read access.
- Fixed step file for 001 test.
- removed pyc files from repo