fix infinite loop in getBounds and setMaxBounds, close #1895, close #1866
fix map scrolling right on click with horizontal scroll on page, close #1901
bump version
Merge branch 'stable' into gh-pages

* stable:
  bump version
  fix map scrolling right on click with horizontal scroll on page, close #1901
  fix infinite loop in getBounds and setMaxBounds, close #1895, close #1866
update build to 0.6.4
update links to 0.6.4
add notes about 0.6 updates to blog post