Add manage_pages to the Facebook permissions

It appears that adding the manage_pages permissions results in Facebook issuing tokens which don't appear to expire after 60 days.
Refactored init.php to remove global path init
Since it is already present in Loader class
Add Post API twitter saved search

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Merge pull request #1637 from chmac/patch-1

Add manage_pages to the Facebook permissions
It appears that adding the manage_pages permissions results in Facebook issuing tokens which don't appear to expire after 60 days.
Merge pull request #1638 from vaibhav276/globalpath-refactor

Refactored init.php to remove global path initialization
Metweet insight
closes #1643, closes #1645
Foursquare plugin: Fix photo processing
Foursquare API sometimes returns suffix and prefix, sometimes just photo
Closes #1650
Merge pull request #1648 from AaronKalair/improve-test-documentation

Added section on configuring app armor to test documentation
Merge pull request #1647 from AaronKalair/plugin-documentation

Improved plugin builder script and documentation for plugin developers
Merge pull request #1654 from AaronKalair/insight-developer-tools

Created script to automatically generate basic insight files and wrote documentation
Changed follower_count to count_history to enable tracking of more variables
Added video table and supporting classes
YouTube Plugin