fix check_tsd -c/-w options logic

it should fail only if both are None, not the other way around

Signed-off-by: Benoit Sigoure <tsunanet@gmail.com>
accept HTTP 202 as success

opentsdb v2 returns 202 when asked for datapoints

Signed-off-by: Benoit Sigoure <tsunanet@gmail.com>
Merge remote branch 'remotes/official/next' into next