Visual Test Shell for BACnet SVN

PretranslateMessage: cleanup, suggestion, and handle default messages

Replace isspace, isdigit, tolower etc. with IsSpace, IsDigit etc: the standard function crash on characters < 0. Since char is signed, that means any ISO8859-1 character above 127.

Revised scripts
- remove extraneous BVLL/DER/DADR etc: use defined Name to permit script re-use without editing
- get IUT info from config.vts
- corrections to current text format for Date, Time etc.

Clean up ErrorPDU display: no longer has segmentation bits, add handler for all defined services

Allow arbirary number of detail lines (was 5000)

Moved V3.5.3 scripts under "old".
Replaced scripts with Buddy Lott's updates from SourceForge messages 1704394 and 1704507.
Futher updates are planned to generalize the updated scripts

Make script execution termination terminate ALL steps.
Make script execution terminate without crash when script edit or app is closed.
Rename "halt" to "suspend", and "kill" to "terminate" on menus to reduce ambiguity.
Revise toolbar butoons for suspend/terminate/step

Add a few more services and datatypes

Revise read-all-properties (from EPICS) to omit DER, invoke, BVLL etc. if destination is a Name
- makes for much shorter and more readable scripts
- makes the script reusable on different datalinks, via routers, etc.

Add "Survival Guide"
Small updates to other docs