Makes the shepherd's task list a private instance, as opposed to a static one. This was a vestige from the previous architecture that we forgot to cleanup. Also adds a call to tasks.clear() when shutting down a MondrianServer instance.
Makes the shepherd's task list a private instance, as opposed to a static one. This was a vestige from the previous architecture that we forgot to cleanup. Also adds a call to tasks.clear() when shutting down a MondrianServer instance.

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