#159 timer_add()/timer_remove() macros

[Bert Wesarg]

this adds two new macro subroutines for handling timeouts

syntax:
timeoutid timer_add(string macro_subroutine_name, int timeout_in_msec);

void timer_remove(timeoutid id);

there can be a problem on LP64 architectures, the nedit macro language have only int support but the XtIntervalId is defined as unsigned long, so there can be domain error, I try to catch this error.

The code to call a macro subroutine is from the Patch Collection patch (see applyFileOpenHook())

[Bert Wesarg]

gen1

[Bert Wesarg]

gen2

[Bert Wesarg]

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gen2:

* fix a bug, when the initial timer_add() window was closed between timer_add() and timeout
* add a new option to timer_add(): "global" => call macro subroutine, even if the current top window isn't the timer_add() window
the default option is not to run the macro

File Added: timer_macros.patch