#159 Solaris: delay when switching between windows

[t_eichstaedt]

When switching between windows, e.g. from the board to the console to type "Hello" to the other player, there is a delay of several seconds until the window is activated (comes to front and receives focus).

This seems to be specific to Solaris; on Linux I don't see this odd behaviour.

Other minor bugs regarding Solaris:
In the main jin shell script,
1. add "-client" to JAVA_OPTS.
(JAVA_OPTS="-client ${JAVA_OPTS}")
This does not seem to make any difference (on my machine java defaults to start in server mode), but won't hurt.
2. change "grep" to "/usr/sfw/ggrep"

[t_eichstaedt]

Logged In: YES
user_id=1336941
Originator: YES

correction:
2. change "grep" to "/usr/sfw/bin/ggrep"