SharpWiki v0.5 Released

This is taken directly out of the release notes.
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- Set the maximum character limit on the new and edit pages to 7000 characters.
- Refine the content parser. In creating these pages I have seen some issues with multiple tags in one line and tags in list items not rendering properly.
- Better support for < and > symbols in pages. Right now, the HTML stripper function removes them and all text between them as if it were a tag.
- Added an option in the Web.config file to allow for new links to open in the current window or a new one.