[988] Upgrade pdf.js libraries and dependencies
[#988] remove minified files as they are out of date
[#988] Update images and html from pdf.js
[#988] Customize viewer.js and viewer.css so that it works with ckan
[#803] Warn users before deleting an organization

Deleting an organization deletes all the public and private datasets
belonging to the organization. Add a warning to the delete confirmation
about this.
[#852] Added OG meta information to the dataset and resource pages
[#1007] Minor template and user identify changes
[#1007] More template tweaks
[#1008] Catch ValueError when resource's size is not an int

Fixes #1008.
[#1007] Allow minimal user data to be returned from user_show action
[#1007] Ignore_not_sysadmin validator and sysadmin updatable in schema
Update .gitmodules

Update .gitmodules to get sphinx through https on github
Merge pull request #993 from okfn/803-warn-before-deleting-org

[#803] Warn users before deleting an organization
[#1015] Add new toolkit functions plus minimal docs
Merge branch 'master' of github.com:okfn/ckan into 1014-sphinx-theme-git-url
Merge branch '1014-sphinx-theme-git-url'
Merge pull request #852 from okfn/852-meta-information

Improve description when using social sharing links
Merge pull request #988 from okfn/988-upgrade-pdf-js

Upgrade pdf.js
Merge branch '1009-ValueError-when-resource-size-is-not-an-int'
Merge branch 'master' into 1007-IAuthenticator-extras