Fix support of some ts (transport stream) files and minor interface issue

- 0004166: [Information] chapter edition (must press enter twice to validate change) (wesson) - resolved.
- 0004368: [Unsupported file/stream format] TS4 files no longer supported from 4.1.16 (wesson) - resolved.

- Fixed possible problem with the selection of incompatible watermark images.

[-] A small bugfix in closing the message editor
[-] (#0008656) Broken warning about opened Reply window for same recipient in 5.0.9.6 (BETA issue)
[-] (#0008652) "Replied" Icons not working in 5.0.9.6 (BETA issue)

This build contains some small fixes and 2 new enhancements:

New: Added /InstallOnlyNewerVer parameter for command line installations
Fix: Corrected installation on Windows 2000
Fix: Correction for Greek character conversions
Fix: Correction for rendering patterns

New interface
Improved audio buffer settings (including custom buffer settings)

* GUI: improve Master Password request dialog.
* GUI: redesign Send by Email dialog.
* GUI: Fix minidialog does not disappear immediately when called
by keyboard shortcut.
* Fix export to IE favorites.
* Sync: make WinInet option really work, fix proxy issues.
* Fix Thunderbird does not open .RFP files attached to email in
RF.
* Editor: fix Copy Text from Safenote does not add it to MRU
List.
* Editor: preserve 'Always on top' flag between RF Editor runs.
* Editor: fix protect/unprotect menu items.
* Win32: fix incorrect save/fill of edit controls in VB6-based
applications.
* Win32: fix attaching to SAP when MSHTML is present in it.
* Fix form filling on certain forms.
* Fix crashes.