Add geojson sample files
Add vector label example
Update vector-labels example

Add forms to let the user change the labels as they want.
Text 'Wrap' doesn't work properly. '\n' are supposed to allow
line to break.
Remove unused 'align' column from geojson
Update vector-labels example

Add note about the 'Text/Wrap' option currently not working.
Fix vector-labels example

Typo fixes, add 1 more font
Add ol.View2D#fitGeometry
Add ol.View2D#centerOn
Add center example
Use default style function in FeatureOverlay
Merge pull request #1746 from sbrunner/fitcoordinates

Fit coordinates on visible map, Center coodinate on positions
Merge pull request #1785 from adube/example-labels

Example labels
Add oli.FrameState extern
Use oli.FrameState instead of ol.FrameState
Add oli.View2DState extern
Use oli.View2DState instead of ol.View2DState
Fix the pointer index

It has to point to the end of the current block, not to the
beginning of the next block. See L581.
Merge pull request #1827 from elemoine/featureoverlay

Use default style function in FeatureOverlay
Merge pull request #1833 from ahocevar/hit-detection-pointer

Fix the pointer index
Add and export documentation for ol.render.canvas.Immediate