Update buildcfg/readme
Remove unnecessary newlines
Document options default value
Add link to the OSM XML documentation
Merge pull request #2417 from probins/patch-1

Update buildcfg/readme
Merge pull request #2421 from fredj/misc

miscellaneous documentation and coding style fixes
Build css if source is newer

Previously, build/ol.css wasn't getting rebuilt on updates to css/ol.css.
Merge pull request #2424 from tschaub/build-css

Build css if source is newer.
Add examples to ol.coordinate functions.
Merge pull request #2425 from marcjansen/examples

Add examples to ol.coordinate functions
Revert "Add FIXME"

This reverts commit a4afcd533fce7d577a9aae75bf8351e87009b126.

Code removed in 7fabff5ffac497ea8a8245a22af446c66c19531f
Merge pull request #2427 from fredj/misc

Revert "Add FIXME"
Rename ol3Logo to logo in map options
Reuse event pixel to compute the coordinate
Merge pull request #2429 from fredj/reuse-pixel-for-coord

Reuse event pixel to compute the coordinate
Update introduction tutorial
Allow string & object to be passed as map logo
Uncollapse when there’s only logos
Fixes wording in comments
Set type=button to avoid forms submit