First version of the suggested front end testing document

doc/frontend-testing.rst

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+Front-end Testing
+=================
+
+All CKAN features should be coded so that they work in the
+following browsers:
+
+* Internet Explorer: 9, 8 and 7
+* Firefox: Latest
+* Chrome: Latest
+
+These browsers are determined by whatever has >=1% share
+on this page <http://data.gov.uk/data/site-usage?month=2012-11>
+
+Install browser virtual machines
+================================
+
+In order to test in all the needed browsers you'll need access to
+all the above browser versions. Firefox and Chrome should be easy
+whatever platform you are on. Internet Explorer is a little trickier.
+You'll need Virtual Machines.
+
+We suggest you use <https://github.com/xdissent/ievms> to get an
+Internet Explorer virtual machines.
+
+Testing methodology
+===================
+
+Soon...
+
+Common pitfulls & their fixes
+=============================
+
+Reserver JS keywords
+--------------------
+
+Since IE has a stricter language definition in JS it really doesn't
+like you using JS reserved keywords method names, variables, etc...
+This is a good list of keywords not to use in your JavaScript:
+
+<https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Reserved_Words>
+
+Unclosed JS arrays / objects
+----------------------------
+
+Internet Explorer doesn't like it's JS to have unclosed JS objects
+and arrays. For example:
+
+::
+
+    var foo = {
+    	bar: 'Test',
+    };
+
+Will break. However:
+
+::
+
+    var foo = {
+    	bar: 'Test'
+    };
+
+Will not break.