Updated first_run background script to reflect latest changes in options and glyph icons

[sambuddhabasu]

Changes made in the PR:

• The privly-applications submodule has been updated to commit, https://github.com/privly/privly-applications/commit/2061c130480dc5a2f2ce16e912dedc7017a71921
• The js files, storage.js, context_messenger.js, options.js and glyph.js has been included in the global page now.
• In the first_run.js background script, ls.getItem() and ls.setItem() has been replaced by Privly.storage.get() and Privly.storage.set()
• For checking and setting the glyph icons, Privly.glyph has been used
• The runningVersion has been dynamically set now when possible
• The first_run.js background script test has been updated

[smcgregor]

One inline question. Ready to merge otherwise.