JSON Import library fix

Fix for json import not working due to invalid library name

Updates to processEmbed cron

• Shortened code for checkOEmbedURL
• Added curl timeouts to script to call embedly
• Added status code check to embedly API call
• Fixed issue with Huffduffer embeds failing

Updates for Mobile & Tablets

Made the use on mobile & tablets much better.

Tag update

• Update most recent and most popular tags to just count active marks

Updated Javascripts

Updated Javascripts

Extra columns in user CSV export

Extra columns in user CSV export

Cache Hotfix

• Fixing cache on tags that was causing duplicate key SQL errors

Added Custom Cache Capabilities

• Added the ability to add your own custom caching library
• More details here

Bug Fixes & UX Updates

• Sidebar Updates
• Interaction Updates on Mobile
• Fixed some issues with displaying marks

Prepared export to CSV

Prepared export to CSV