Added a style guide and some suite design sections to the CUG.
A few doc corrections for the previous commit.
More minor doc changes.
Defined HOSTX for new documentation.
Minor style guide text adjustment.
Trim internal line indentation from command scripting.
Updated style guide text based on feedback.
Use splitlines in new trim function.
Fix new trim function.
Typo fix.
Removed job script indentation trim functionality.
Updated jobscript test reference file.
Merge pull request #791 from hjoliver/suite-style-guide

Added a style guide and some suite design sections to the CUG.