CRM-17837 don't show linkable fields as links if the base url is not passed in.

CRM-17837 don't show linkable fields as links if the base url is not passed in.

On some reports it may not be appropriate to have linkable urls. This currently applies to the lybunt - as the link is going through to the contribute/detail report which doesn't take the same filters - although making it self-linking might make sense this seems like a logical change to the parent function

Change-Id: I969c92755cb053181a53acb5d829d6d9a0554e06

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Change-Id: I267409dced4602b028baa9c3beeaf8be70a712c3