fixed bug in vector layer visualization
pulled qps updates

.gitignore knows enmapboxtestdata
fixed several missing references

fixes issue #76 - uses original QGOS raster renderer widgets only (to be improved)

- Keys as shortcut to access EO TSV settings
- settings are restored during start of EO TSV
timeseriesviewer.settings.value(..., default=...) und .setValue(...) as counterparts to QSettings object
- added SettingsDialog

refactoring
added timeseriesviewertesting and moved tests to

refactoring (import statements)

SpectralLibraryWidget (wip)

utils.py refactoring (loadUi -> loadUI, affects many widget classes)

added cursorlocationvalue.py + panel
added spectrallibraries.py + panel
added a couple of new icons
added trees.py (basic TreeModel system)

TimeSeriesViewer inherits QgisInterface
refactoring maptools
 - added mapcanvas.MapTools
 - TimeSeriesviewer.onShowProfile handles location based maptool requests (CursorLocation, Temproal/spectral prpofiles)

changen MapViewUI layout form horizontal to vertical
added MapView specific crosshairs

added classificationscheme.py
utils.py added value2str
added vrtbuilder.ui
virtualrasters: multiple changes (in progress) related to vrtbuilder.ui

refactoring