Refactor File API for Dropbox support
Remove Zap and Shake/Slide and share demo hack

Jira issue: WP-44
Multiple file systems (incl. Dropbox file system)

Jira issue: WP-44, WP-601, WP-694
Update some old links
Fix put zero body bug
Added schema validation for policies (WP-27)
Fixed default policy and some jasmine tests

Jira issue: WP-27
Fixed policymanager.js
fixed reference and small indentation issues

Jira issue: WP-27
Removed wrong reads of "self" properties

Jira issue: WP-27
Merge branch 'master' into WP-27

Jira issue: WP-27
Fixed xml2js parsing issue.

Jira issue: WP-27
Changed policy tags to match the grammar
(Uri->AccessURI, Start->StartTime)
Restored Purpose value for policy_dhp_12.xml

Jira issue: WP-27
Merge branch 'master' into WP-27
Changed default policy
With this one, policy manager allows any request (access control +
privacy)

Jira issue: WP-27
Fallback when Gnome-Keyring fails store in a file

Jira Issue: WP-795
Enabling PZP start in travis script

Jira Issue: WP-795
PZP callback handling modified

Jira Issue: WP-795
Jira Issue: WP-795
Policy editor: draft implementation
Jira issue: WP-532
Gnome keyring alternative

Jira Issue: WP-795
Webinos PZP reset button added

Jira Issue: WP-798