This reverts commit b18f6cc1.

STYLE: minor rewording, drop grep/sed in favour of sed only

- simpler/clearer to use "on/off" instead of "compressed/uncompressed"

- markup codingStyleGuide.org examples so they actually indent correctly

- use 'Info<<' as per codingStyleGuide instead of 'Info <<'

Upgraded 1.4 cases to 1.5.

- change system/controlDict to use functions {..} instead of functions (..);
  * This is internally more efficient
- fixed formatting of system/controlDict functions entry

- pedantic change: use 'return 0' instead of 'return(0)' in the applications,
  since return is a C/C++ keyword, not a function.