updated debian/ubuntu required packages
Merge pull request #33 from daniellawrence/master

updated debian/ubuntu required packages
Numbered messages
Show expose error code in shellcheck frontends
\" should not be treated specially in `backticks`
Added proper command line parsing
Removed jsoncheck. Use 'shellcheck -f json -' instead
Added gcc compatible output for editor integrations
Support for checkstyle compatible xml output
gcc output mode now uses a tab width of 1
Exit with 1 on comments and 2 on failure
More discriminating error codes
Replace Prelude.catch with Control.Exception.catch
Added --exclude to filter out warnings
Added hint to suggest missing ;; in case
Fixed wrong quoting warning for foo=" "; foo
Assume variables have spaces/globs by default
Assume variables have spaces by default
Fix incorrect warning for 'foo > bar 2> bar'
Fixed warning for 'exec foo; exit 3'