MONDRIAN: Modify megatest to support testing openjdk1.7 (mondrian already builds     and runs fine); make jdk1.7 and mysql the default configuration.
MONDRIAN: Modify megatest to support testing openjdk1.7 (mondrian already builds
    and runs fine); make jdk1.7 and mysql the default configuration.

[git-p4: depot-paths = "//open/mondrian/": change = 14757]

OSBI/mondrian,citycloud-bigdata/mondrian,cesarmarinhorj/mondrian,AvinashPD/mondrian,citycloud-bigdata/mondrian,sayanh/mondrian,truvenganong/mondrian,cesarmarinhorj/mondrian,truvenganong/mondrian,mustangore/mondrian,pentaho/mondrian,openedbox/mondrian,wetet2/mondrian,syncron/mondrian,mustangore/mondrian,julianhyde/mondrian,OSBI/mondrian,ivanpogodin/mondrian,pedrofvteixeira/mondrian,wetet2/mondrian,mdamour1976/mondrian,dkincade/mondrian,citycloud-bigdata/mondrian,wetet2/mondrian,preisanalytics/mondrian,pedrofvteixeira/mondrian,rfellows/mondrian,nextelBIS/mondrian,mdamour1976/mondrian,truvenganong/mondrian,stiberger/mondrian,sayanh/mondrian,stiberger/mondrian,bmorrise/mondrian,preisanalytics/mondrian,cocosli/mondrian,preisanalytics/mondrian,ivanpogodin/mondrian,dkincade/mondrian,nextelBIS/mondrian,syncron/mondrian,cocosli/mondrian,lgrill-pentaho/mondrian,Seiferxx/mondrian,ivanpogodin/mondrian,pentaho/mondrian,syncron/mondrian,mustangore/mondrian,cesarmarinhorj/mondrian,bmorrise/mondrian,rfellows/mondrian,AvinashPD/mondrian,nextelBIS/mondrian,stiberger/mondrian,AvinashPD/mondrian,cocosli/mondrian,julianhyde/mondrian,sayanh/mondrian,Seiferxx/mondrian,OSBI/mondrian,openedbox/mondrian,lgrill-pentaho/mondrian,openedbox/mondrian,lgrill-pentaho/mondrian,bmorrise/mondrian,dkincade/mondrian,pedrofvteixeira/mondrian,mdamour1976/mondrian,pentaho/mondrian,Seiferxx/mondrian