Correct typo in geometry type (thanks @jystic)

Previously read 'multilinstring' instead of 'multilinestring'.  Letting the compiler check for typos instead now.
Stop other interactions when dragging
Merge pull request #802 from tschaub/802-multilinstring-typo

Multiline strings are not rendered correctly due to typo in VectorLayer
Merge pull request #819 from twpayne/fix-819

Drag rotate and zoom example is broken
Don't invoke interactions if view is not defined
Make View2D-only comments more consistent
Use view2DState in ol.interaction.Drag
Use view2DState in ol.interaction.DragPan
Use view2DState in ol.interaction.DragRotateAndZoom
Use view2DState in ol.interaction.DragRotate
Use view2DState in ol.interaction.TouchPan
Use view2DState in ol.interaction.TouchRotate
Use view2DState in ol.interaction.TouchZoom