moved pycookbook images to correct path
updated sections transparency menu, histogram menu, pyramids menu
Merge pull request #149 from SrNetoChan/master

Map tips and City Color Ramps Screenshot
fix list
Fix code block by indenting.
Fix urls by adding spaces before the link.
Fix code blocks.
Remove indentation from paragraph.
Fix run-on in the object reference.
updated raster properties
updated section Style Menu
update singleband pseudocolor
added figures for raster render types
update text for raster render types
created multiband color section
changed paletted figure to alaska landcover img
removed diagramm overlay plugin, is now part of diagramm tab in layer properties
updated color renderers
Update index.rst
updated QGIS plugins