ATS - Montana Expansion 2.0 v0.2.8

v0.2.8 -
fix terrain bugs found by Kaiser -
add city of Hardin, simply to fix gallon fuel storage problem created by me adding one to the Billings garage -
remove the CaseMagnum1 model -

Authors: SCS, xRECONLOBSTERx, Goggles56, Sineptorro, Darkness, Kaiser, Marian