Navigator Examples Update

1. Added "ABSOLUTE" positioned navigator example
2. Adjusted the size of the "Custom Navigator Location" navigator
Update npm tools to fix dependency mismatch.
Add runtime overlay example.
Merge branch 'master' of https://github.com/openseadragon/site-build
Add help on running from local file system.
Add missing period.
Merge remote-tracking branch 'origin/master' into Navigator-Examples
add bower.json
Changed author to "openseadragon"
".gitignore" not needed

".gitignore" is already covered by "**/.*"
Merge pull request #50 from patrickheck/add-bowerjs

Add Bower Support
1.1.0 release
Merge pull request #49 from avandecreme/patch-1

Add help on running from local file system.
Merge pull request #48 from avandecreme/master

Add overlay example
Merge pull request #46 from msalsbery/Navigator-Examples

Navigator Examples Update