Add CONTRIBUTORS file and copyright note. Fixes #403 (#404)

* Add CONTRIBUTORS file and copyright note. Fixes #403
* Add credits for Czech and Finnish translators.
* Minor Travis fix

.travis.yml

@@ -33,8 +33,9 @@ cache:
 env:
   global:
   - SETUP_XVFB=true
-  - PYTHON36=3.6.3
-  - PYTHON37=3.7.1
+  - PYTHON36=3.6.9
+  - PYTHON37=3.7.5
+  - PYTHON38=3.8.2
 
 matrix:
   include:
@@ -52,6 +53,7 @@ install:
     export DISPLAY=:99.0
     /sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_99.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :99 -screen 0 1920x1200x24 -ac +extension GLX +render -noreset
     sleep 3
+    cd $(pyenv root) && git pull origin master && cd $TRAVIS_BUILD_DIR
   elif [ $TRAVIS_OS_NAME = "osx" ]; then
     brew upgrade pyenv
   fi
@@ -60,7 +62,7 @@ install:
   eval "$(pyenv init -)"
   pyenv shell $PYTHON36 $PYTHON37
 
-- pip install -U setuptools pip==18.1
+- pip install -U setuptools pip
 - pip install .
 - pip install borgbackup
 - pip install -r requirements.d/dev.txt
@@ -72,24 +74,6 @@ before_script:
 script:
 - tox
 
-#after_script:
-#- |
-#  if [ $RUN_PYINSTALLER = "true" ]; then
-#    # Cleanup
-#    pip uninstall -y $PIP_DEPENDENCIES
-#
-#    # https://github.com/wkentaro/labelme/issues/183
-#    if [ $TRAVIS_OS_NAME = "osx" ]; then
-#      pip uninstall -y Pillow
-#      conda install -y Pillow
-#    fi
-#
-#    # Build the standalone executable
-#    pip install pyinstaller
-#    pyinstaller labelme.spec
-#    dist/labelme --version
-#  fi
-
 branches:
   only:
   - master

CONTRIBUTORS.md

@@ -0,0 +1,31 @@
+# Vorta Contributors
+
+## Programming
+The following authors made major code contributions to Vorta source code:
+
+### [Manuel Riel](https://github.com/m3nu)
+- Original author
+- Maintainer
+
+### [Thomas Waldmann](https://github.com/ThomasWaldmann)
+- Major contributions to implement translations
+- Clean up style and formatting
+- Maintainer
+
+### [Julian Hofer](https://github.com/Hofer-Julian)
+- Flatpak packaging for Linux
+- Numerous incremental features
+- Maintainer
+
+### Others
+For other contributors, see [here](https://github.com/borgbase/vorta/graphs/contributors).
+
+
+## Translations
+The following authors contributed translations:
+
+- German: [Thomas Waldmann](https://github.com/ThomasWaldmann)
+- Italian: [Luigi Operoso](https://github.com/brokenpip3)
+- French: [David Brassard](https://github.com/dbrassard)
+- Czech: [Pavel Borecki](https://www.transifex.com/user/profile/pavelb/)
+- Finnish: [Jiri Grönroos](https://en.liberapay.com/artnay/)

LICENSE.txt

@@ -1,3 +1,5 @@
+Copyright (C) 2018-2020 Manuel Riel and Vorta contributors (see CONTRIBUTORS.md)
+
                     GNU GENERAL PUBLIC LICENSE
                        Version 3, 29 June 2007
 

README.md

@@ -25,7 +25,7 @@ See our website for [download links and and install instructions](https://vorta.
 - If you have questions or simply want to talk about Vorta, find us on [Matrix](https://matrix.to/#/#vorta:matrix.org). For Borg-specific topics, join the `#borgbackup` IRC channel on `chat.freenode.net` instead.
 
 ## License and Credits
-- Thank you to all the people who already contributed to Vorta: [code](https://github.com/borgbase/vorta/graphs/contributors), [translations](https://github.com/borgbase/vorta/issues/159)
-- Licensed under GPLv3. See [LICENSE.txt](LICENSE.txt) for details.
+- See [CONTRIBUTORS.md](CONTRIBUTORS.md) to see who programmed and translated Vorta.
+- Licensed under [GPLv3](LICENSE.txt). © 2018-2020 Manuel Riel and Vorta contributors
 - Based on [PyQt](https://riverbankcomputing.com/software/pyqt/intro) and [Qt](https://www.qt.io).
 - Icons by [FontAwesome](https://fontawesome.com)