replaced agencies multyselect widget with adjacent lists
update UI
gui clean up
replaced magnitudes multicheck widget
refactored all the multi selection tool
made smaller buttons
fixed button height
added geographical filtering
added set initial data mehods
fixed all tests
made LineMultiSelectWidget usable from designer by promoting a QGroupBox
cleaned up tests
add docstrings
Merge pull request #42 from gem/newMultiselectWidget

New multiselect widget