Detect URLs about csv2rw

[farling42]

An example of what actually appears in the RWexport file (after decoding):

<p class="RWDefault"><span class="RWSnippet">Here is some text with an embedded <a class="RWLink" style="color:#000000;text-decoration:none" href="http://www.amusingtime.uk/" title="http://www.amusingtime.uk/"><span class="RWLink">http://www.amusingtime.uk/</span></a></span><span class="RWSnippet"> within it.</span></p>

At the beginning of a snippet, it appears as:

<p class="RWDefault"><span class="RWLink" style="color:#000000"><a class="RWLink" style="color:#000000;text-decoration:none" href="http://amusingtime.uk/somedir?query" title="http://amusingtime.uk/somedir?query"><span class="RWLink">http://amusingtime.uk/somedir?query</span></a></span><span class="RWSnippet"> appears at the start of the lien.</span><span class="RWSnippet">&nbsp;</span></p>

[farling42]

One possible RegExp which will detect a URL is:

((http[s]?|ftp):\/)?\/?([^:\/\s]+)((\/\w+)*\/)([\w\-\.]+[^#?\s]+)(.*)?(#[\w\-]+)?

obviously the first bit can be replaced by something that finds any sequence of letters.

[farling42]

Implemented in V1.14

The regular expression used to match a URL might need improvement.