In qview, changed the character that is used as a token when parsing the list...

In qview, changed the character that is used as a token when parsing the list of file names used when the socket is already open. In SocetThread's run method, changed the token used to parse the input buffer from a space to the escape character (ascii #27). In ControlPointEdit's saveChips() method, added single quotes around the file names in case there are spaces or other special characters in them. In coreg, replaced the spaces in the point ID with underscores. Fixes #1551.

git-svn-id: http://subversion.wr.usgs.gov/repos/prog/isis3/trunk@5670 41f8697f-d340-4b68-9986-7bafba869bb8