20180117 Magnus Schieder

  Creating a new database with test data:

  1) Delete getan_test_data.db if it already exists to create a new database.
  2) Execute getan_test_data.py to get the test database getan_test_data.db.
     (getan/test_data/getan_test_data.py)

- Bug 1.0
  2) Open getan with the test database. (getan /path/getan_test_data.db)
  3) Switch to the entries from the project pro1 with tab.
  4) Mark with return and arrow keys ent1 and ent2.
  5) Go back to the projects with tab.

  20180118BER:
    Observation: ent1 and ent2 are not highlighted anymore.

  20180126 Magnus Schieder
	The selection is deleted when switching to the projects.
	So ent1 and ent2 should not highlighted anymore.

20180118 BER There should be an indication which entries are shown
    when being in the right pane. When you use tab to go to the entries,
    it cannot be seen anymore in which project I am.
    This is a larger drawback after moving all entries somewhere,
    it is unclear which task's entries are shown now.

20180104 BER (minor) Display licensing information with --version and
  usage. Implementation idea: change this when moving away from optparse.

20170709 BER: Give scripts/getan-eval.py a more specific name and add
  it as a script to be installed.

20170529 BER: Python compatibility: switch from deprecated optparse module
  to argparse. Affects getan/main.py and scripts/getan-eval.py.

20170504 BER: Some multi-user installations do not want a logfile by default.
  We could solve this requirement by making it configurable.

20160912 BER: Better code: states.py: classes EditEntryState and
  AdjustEntryState have same methods exit() and set_focus(), maybe join them?

Older:

- Create a 'Help-Widget' to give the user an information about all possible
  keys.

- reimplement RPN input for current getan implementation (28489e672e61)

- The sum of previous times and currently running time should be displayed as
  in previous versions of getan.

- The currently running time should be shown near the project.