Bump treeherder client version to 2.1.0
Bump treeherder client version to 2.1.0

edmorley/treeherder,akhileshpillai/treeherder,edmorley/treeherder,kapy2010/treeherder,KWierso/treeherder,KWierso/treeherder,glenn124f/treeherder,glenn124f/treeherder,kapy2010/treeherder,tojon/treeherder,glenn124f/treeherder,akhileshpillai/treeherder,tojon/treeherder,akhileshpillai/treeherder,kapy2010/treeherder,edmorley/treeherder,KWierso/treeherder,tojon/treeherder,tojonmz/treeherder,akhileshpillai/treeherder,tojonmz/treeherder,glenn124f/treeherder,tojon/treeherder,glenn124f/treeherder,kapy2010/treeherder,akhileshpillai/treeherder,tojonmz/treeherder,KWierso/treeherder,edmorley/treeherder,glenn124f/treeherder,tojonmz/treeherder,akhileshpillai/treeherder,kapy2010/treeherder,tojonmz/treeherder,tojonmz/treeherder