Log Message:
Updated nxtvepg to 2.7.5

Changes since 2.7.4:
- fixed HTML export (not all text format options were processed,
  weekday color column was not implemented) and improved layout
- fixed timezone format in XMLTV output (DTD 0.5, local timezone only)
  Thanks to Laurent Garnier for reporting the bug.
- XML export: format can now be selected via command line options
- added command line option -outfile <path>
- Improved network/channel identification by VPS/PDC during
  interaction with TV applications (e.g. TV5 was not identified)
- Added support for reading channel table of K!TV 2.3
  Thanks to Quenotte for providing a patch.
- Windows only: fixed !wintv! keyword handling in scripts bound
  to reminder events (this was already supposed to be in 2.7.4 but
  lost somehow)
- Windows only bugfix: "Record this show" did not appear in context
  menu when connected to K!TV
- bugfix: missing error-check in time conversion lead to inconsistant
  start/stop times around daylight saving time switch (which lead to
  error "database corrupt" during reload)