add possibility to run jpa tests on GlassFish with no replacement of EclipseLink bits.
add possibility to run jpa tests on GlassFish with no replacement of EclipseLink bits.

code is reviewed by Edwin Tang.

gameduell/eclipselink.runtime,gameduell/eclipselink.runtime,gameduell/eclipselink.runtime,gameduell/eclipselink.runtime