Description of the issue
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Validation of the 'name' and 'url' fields is not case sensitive, causing activity creation to fail (because the AC server does not allow for duplicate name/url and its check is case insensitive).

This affects the 2.0 stable branch, but not the 1.9 stable branch.

Steps to reproduce
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1. Create a new AC activity e.g.
Meeting name: "test field case sensitivity"
Meeting URL: "testfieldcase"
==> Activity creation successful
2. Create a new AC activity and use the same name as #1 but change capitalisation e.g.
Meeting name: "Test field case sensitivity"
Meeting URL: "" (leave blank)
==> Activity creation fails with error message "Incorrect function"
3. Create a new AC activity and use the same URL as #1 but change capitalisation e.g.
Meeting name: "test field case sensitivity - url check"
Meeting URL: "Testfieldcase"
==> Activity creation fails with error message "Incorrect function"

Expected Behaviour
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The activity creation form should throw a validation error, as it does if you try and create an activity with exactly the same name or url as an existing one.

Patch and github repo
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Patch and links to be provided in comments section once I get a tracker number for this issue