Added submodule "wp-juxtalearn-hub"

* https://github.com/mhawksey/wp-juxtalearn-hub/commit/bdadd6edcf3d53a0
Adding a Make file

* make install-oer
* make install-jx
Fix a sym-link line in Makefile
Added missing Wordpress theme submodule "tiny-forge" v 1.5.4.2

* http://wordpress.org/themes/tiny-forge
* https://github.com/svn2github/tiny-forge/commit/f20eda2717afddd7
Fixes and edits to Makefile, added a 2nd config TEMPLATE PHP

* Plus, edits to README markdown, gitignore
Updating "wp-juxtalearn-hub" submodule, with 27 Jan and 17 Feb fixes

* Thanks @mhawksey
Updating "wp-juxtalearn-hub" submodule, with @mhawksey's refactor and pull
Updating WordPress core, and wp-evidence-hub sub-modules

* https://github.com/WordPress/WordPress/tree/3.8-branch
* v3.8.1, -01-23: https://github.com/WordPress/WordPress/commit/831b3ca50dd98fdd0efe
* https://core.trac.wordpress.org/log/branches/3.8/src?rev=27325
* -02-26: https://github.com/mhawksey/wp-evidence-hub/commit/75218ec9957e6ff6905c
Fix symbolic link paths, suppress errors in Makefile

* Minor additions to .gitignore