Run model command fail due to long path (dir+filename)

[Angus Yeh]

Causes: - TIM run_model command uses absolute path to run model, because it launches AUTOUGH2 at cwd - AUTOUGH2 does not accept path name longer than 90 or so characters.

Possible fixes: - check path lenght and inform user - instead of running at whatever cwd, change cwd to where input file is, then change back afterwards (may have other issues). this also has the benefit of not producing .DATA "juncks" in CWD

[Angus Yeh]

Fix Issue #76 to warn user when model has a path+filename that is too long for AUTOUGH2.

→ <<cset 50296fa28b30>>

[Angus Yeh]

Fix Issue #76 to warn user when model has a path+filename that is too long for AUTOUGH2.

→ <<cset 50296fa28b30>>