Make 'zoom' independent from 'page' in the hash parameters
Merge pull request #3864 from Snuffleupagus/independent-zoom-parameter

Make 'zoom' independent from 'page' in the hash parameters
Merge remote-tracking branch 'upstream/master'

Conflicts:
	web/viewer.js
Merge remote-tracking branch 'upstream/master'

Conflicts:
	web/viewer.js