FT-594 add fractal tree version 24 (tokudb 7.0.1) and version 27 (tokudb 7.5.0) stress data directories
FT-594 add fractal tree version 26 stress data directories
Merge branch 'releases/tokumx-2.0'
Merge branch 'bugs/599'
fixed cmake warnings for 3.0.0
disabled keyrange until we fix it