Remove trailing white space from script.
Fix zsh issue where array-index starts at zero.
This is related to listing kre runtimes and associating with aliases.
Z shell arrays start at one versus Bash which starts at zero.
New behavior is backwards-compatible with Bash, however.
Merge pull request #66 from williambogaiv/remove-trailing-white-space

Remove trailing white space from script
Crossgen when install CoreCLR flavors
Merge pull request #70 from williambogaiv/fix-array-index-initialization

Fix zsh issue where array-index starts at zero
Attempt to load and use compression lib, only falling back to shell if it doesn't exist.
Some whitespace changes