Update font patching documentation

Update reference to where fontpatcher.py is located
Merge commit 'HEAD@{2}' (PR #802, squashed) into develop

Closes #935
Ref #302
Closes #300
Merges #802
Ref #769
Disable dash tests

Temporary fix for #931
Merge branch 'disable-dash-tests' into develop
Fix “syntax error near unexpected token `fi'” error
Merge commit '6a08168' into develop
Use busybox as shell name in place of bb
Use pexpect-based tests for testing shells, not screen-based one

Fixes #931 (I hope so)