Changed configure to use the latest version of the TileraMDE.
Changed configure to use the latest version of the TileraMDE.

- this commit will also run the benchmarks on 2.1.2 for the first time

smarr/OmniVM,smarr/OmniVM,smarr/OmniVM,smarr/OmniVM,smarr/OmniVM,smarr/OmniVM,smarr/OmniVM,smarr/OmniVM