Installer should pick up JDK location when it is possible

This feature affects default path to JVM initialization under Windows and Linux:

Scenario 1: (Windows and Linux)

Installer is started with JDK using full path to java as

/path-to-jdk/bin/java -jar installer.jar

or /path-to-jdk/bin is in PATH and installer started as

java -jar installer.jar

Step #4 "Select Java VM" should show /path-to-jdk/ as default Java VM location

For example starting installer on Windows with java from JDK installation as

c:\Program Files\Java\jdk1.6_0_31\bin\java -jar installer.jar"

should pick up c:\Program Files\Java\jdk1.6_0_31\ as Default Java VM location

In previous milestone Beta2 it would be c:\Program Files\Java\jdk1.6_0_31\jre

Scenario 2: (Windows only)

Running installer with java as shown below after default installation of JDK

java -jar installer.jar

Step#4 "Select Java VM" should show "C:\Programm Files\Java\jdk1.<n>.0_NN" as sdefault Java VM location

For example with default installation of JDK 1.6.0_31 if installer started as

java -jar installer.jar

Default Java VM should be C:\Programm Files\Java\jdk1.6.0_31 if it is present

In previous milestone Beta2 it would be c:\Program Files\Java\jre6