Rapid Photo Downloader 0.9.14 is released

This version contains minor bug fixes and some updated translations.

- Fix bug #1821917: Error generating Timeline with Arrow 0.13.1.

- Fix bug #1817481: Error deleting sample file at program exit.

- Fix bug #1810572: Error getting camera configuration on certain cameras.

- Again fix bug #1801504: PyQt5_sip not installed or upgraded for local user
when system copy already installed (bug seen on Fedora 29). The fix in
0.9.13 did not always work.

- When installing using the install.py script, upgrade pip if its version is
less than 9.0.

- Disable the program’s built-in upgrade procedure when running from within a
python virtual environment.

- Updated Czech, Dutch, Italian, Portuguese, and Spanish translations.