Minor improvements for spell check
Merge branch 'master' of https://github.com/SubtitleEdit/subtitleedit
Refactoring of "TimeCode" class
installer: remove en_NoBreakAfterList.xml too.
installer: Remove PSVince and use the built-in `CloseApplications` option.

Now the installer will not perform a check when it starts for running process(es). Instead, it will warn just before the actual installation and offer to close any running process(es).

See also http://www.jrsoftware.org/ishelp/index.php?topic=setup_closeapplications and http://www.jrsoftware.org/ishelp/index.php?topic=setupcmdline