(rather than _DEBUG) - improving performance and memory usage in the 99% of
debug builds that don't need the JSDOC stuff.

object/scope hierarchy.

script's termination.

the standard JS error reporting mechanism. Not recommended for most
script-level error logging.

initialized as such by the caller).

is TRUE.

Created js_GenericBranchCallback (used by the load background thread).

automatically terminated upon external termination request (defaults to true).

(whenever possible), for documentation purposes (jsdocs.js).

they want to).

Using EVAL_BRANCH_CALLBACK to control whether js.eval() has its own branch
callback or uses the parent (currently undefined).

branch counter before executing the script text.

loop detection.

string in its own context with no access to any Synchronet objects (secure).

js.max_bytes is now writeable during run-time (why not?).

(pointer to server/service/host-process termination requested flag)
so js.terminated should be used in place of server.terminated for universal
scripts.

but with different names (e.g. branch.counter is now js.branch_counter). This
object will now be used for other internal JS monitoring/control functions
(e.g. garbage collection).
js_internal.c/o/obj now replaces js_branch.*.

compatibility).
Created branch.gc_bytes/last_bytes/max_bytes/counter for garbage collection
performance metrics, advanced debugging.
This modification requires a "cvs update" to the include directory for js.msg.

JS_BranchCallback behavior in regards to infinite-loop detection, periodic
garbage collection, and periodic time-slice yields.
Eliminated global reset_loop() method, ill side-effects. Use branch.limit=0
instead to defeat infinite-loop detection mechanism (e.g. for static services).