Update the sln files to use VS2013.

git-svn-id: http://svn.code.sf.net/p/processhacker/code/2.x/trunk@5597 21ef857c-d57f-4fe0-8362-d861dc6d29cd
installer: update copyright year.

git-svn-id: http://svn.code.sf.net/p/processhacker/code/2.x/trunk@5598 21ef857c-d57f-4fe0-8362-d861dc6d29cd