update build.xml to have 2.2.0.${forceContextQualifier} as timestamp
update build.xml to have 2.2.0.${forceContextQualifier} as timestamp

rrimmana/birt-1,rrimmana/birt-1,Charling-Huang/birt,sguan-actuate/birt,sguan-actuate/birt,rrimmana/birt-1,Charling-Huang/birt,rrimmana/birt-1,Charling-Huang/birt,sguan-actuate/birt,Charling-Huang/birt,Charling-Huang/birt,sguan-actuate/birt,sguan-actuate/birt,rrimmana/birt-1