Specify maximum heap size in JNLP

[Marcus@…]

In the JNLP JOSM should specify a larger maximum-heap -size then the default of 64MB
in the <j2se>-Element

[bastiK]

ref: ​http://forum.openstreetmap.org/viewtopic.php?pid=239145#p239145

When starting JOSM via webstart, it sets the max heap size to 1763 MB on my system, which seem like a good value to me. (Total memory: 8 GB)

We do not no the available memory of the target system, so it isn't possible to specify a fixed value that fits for everyone.

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2013-12-21 02:35:19
Last Changed Author: simon04
Revision: 6502
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2013-12-19 22:48:46 +0100 (Thu, 19 Dec 2013)
Last Changed Rev: 6502

Identification: JOSM/1.5 (6502 en) Linux Ubuntu 12.10
Memory Usage: 52 MB / 1763 MB (18 MB allocated, but free)
Java version: 1.6.0_27, Sun Microsystems Inc., OpenJDK 64-Bit Server VM
Java package: openjdk-6-jre:amd64-6b27-1.12.6-1ubuntu0.12.10.4
VM arguments: [-Xbootclasspath/a:/usr/share/icedtea-web/netx.jar, -Xms8m, -Dicedtea-web.bin.name=javaws, -Dicedtea-web.bin.location=/usr/bin/javaws, -Djava.security.manager, -Djava.security.policy=/etc/icedtea-web/javaws.policy]