tws_check_update, get latest and stable TWS version
tws_check_update, style indentations
tws_check_update, improve debug messages
tws_check_update, improve email text
tws_check_update, no surprises ... set LANG=C
Merge branch 'tws_check_stable'

* tws_check_stable:
  tws_check_update, no surprises ... set LANG=C
  tws_check_update, improve email text
  tws_check_update, improve debug messages
  tws_check_update, style indentations
  tws_check_update, get latest and stable TWS version
Present user agent in wget to avoid 403s

Conflicts:

	tws_check_update
use an existing user agent
Merge branch 'tws_check_user_agent'

* tws_check_user_agent:
  use an existing user agent
  Present user agent in wget to avoid 403s