Build script displays ambiguous error message despite successful build in UNIXLIKE environments

[tim-cotten]

Environment: UNIXLIKE
Test environment: Ubuntu 16.04 LTS

Expected behavior:

• ./makeunx bin will yield an error message on error, and success message on success

Actual behavior:

• ./makeunx bin ALWAYS yields a console message "Error messages are in ccerror.log"
• This ambiguity is confusing to the user and the build appears unsuccessful even if it was

Proposed action:
Check the ccerror.log file size and if it's empty, display "Build successful", otherwise, keep the current behavior.

[mochimodev]

This item corrected in the upcoming release.