fix links

`[]()` instead of `()[]`
Merge pull request #51 from ngoldman/patch-1

fix links
Merge remote-tracking branch 'upstream/master'
add county rtree example
Merge pull request #52 from JerrySievert/master

add county example
Merge remote-tracking branch 'upstream/master'
modify rtree to have serialize/unserialize
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of github.com:JerrySievert/Terraformer
fix tests and add callback to search()
Merge branch 'master' of github.com:JerrySievert/Terraformer
update package.json
Merge branch 'master' of github.com:JerrySievert/Terraformer
update method signature in docs
fix callback for unmatched array
should fix #54
Merge pull request #53 from JerrySievert/master

rename get_tree/set_tree to serialize/deserialize
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of github.com:JerrySievert/Terraformer
update package versions