MapCanvas: used MapCanvasLayerModel that support lazy loading of QgsMapLayer instances
MapViews can have individual vector layer sources for overlay

minor changes

several updates to mapvisualization.py
cleanups + refactoring

fixed icon of mainwindow

mapvisualization: fixed several optical issues, connected buttons

changen MapViewUI layout form horizontal to vertical
added MapView specific crosshairs

first steps to change MapViewCollection UI

virtualrasters.py - fixed setData(<vrt band name>)

removed frame lines from GUI

added new Icons

virtualrasters.py : added feature identify to preview map

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

refactoring

added __main__.py (in progress)
added option to load center pixel automatically

added # -*- coding: uft-8 -*-   and  # noinspection PyPep8Naming to each module
added GPL License statement to each module
added from __future__ import absolute_import to each module

utils.py added loadIcon()
mapvisualization.py implemented MapCanvas loading activity bar

added TimeSeriesTableView, started to implement contextMenu...

added PixelLoaderResult(object)
adjusted TSV icon
changed test_pixelloader.py

VirtualRasterBuilder: added removeVirtualBands(), addVirtualBand(), insertVirtualBand(), addFilesAsStack(), addFilesAsMosaic(), improvements to saveVRT()

updated QGIS Plugin metadata