cowboy/lfe: Helper module changes: ===> (1) Fix string concatenation notation. (2) Export incorporated macros and helper functions. (3) Introduce helper function to draw a horizontal separator banner.
cowboy/lfe: Helper module changes: ===>
(1) Fix string concatenation notation.
(2) Export incorporated macros and helper functions.
(3) Introduce helper function to draw a horizontal separator banner.

rgolubtsov/dnsresolvd-multilang,rgolubtsov/dnsresolvd-multilang,rgolubtsov/dnsresolvd-multilang,rgolubtsov/dnsresolvd-multilang,rgolubtsov/dnsresolvd-multilang,rgolubtsov/dnsresolvd-multilang,rgolubtsov/dnsresolvd-multilang