Colourise Core Output Text (#1471)

* Define colours within COL_TABLE
* Do not output colours for non-terminal instances
* Removed ":::"
* Fixed indenting & spacing
* Made output consistent throughout project
* Reworded text to fit on standard 80 char wide Terminal screen
* Made 'sudo raspi-config' warning (insufficient disk space) only show on RPi
* Make "Installation/Update Complete" the final msg
* Remove redundant messages
* Simplify update available message
* Confirm user would like to begin uninstall
* If "git pull" string says "Already up-to-date.", place [i] before it
* Colour Temp/Interface output
* Made `pihole disable 5z` invalid
* Added error fallback if invalid argument (not s/m) is detected
* Quoted "$2" for consistency
* Updated help text
* L185/286: Replaced echo with redirect
* User agents for adblock.mahakala.is/adaway.org unnecessary 
* Print newline on confirmation of repository reset
* Add output to admin-related dnsmasq restarts
* Return error message for "pihole -q"
* Imply default checkout behaviour with y/N
* Fix uninstall failing to remove pihole user
* Print checkout 'git remote show origin' STDERR on new line
* Replaced checkout "AdminLTE" wording with "Web Admin"

advanced/Scripts/piholeLogFlush.sh

@@ -8,8 +8,11 @@
 # This file is copyright under the latest version of the EUPL.
 # Please see LICENSE file for your rights under this license.
 
+colfile="/opt/pihole/COL_TABLE"
+source ${colfile}
+
 if [[ "$@" != *"quiet"* ]]; then
-  echo -n "::: Flushing /var/log/pihole.log ..."
+  echo -ne "  ${INFO} Flushing /var/log/pihole.log ..."
 fi
 if [[ "$@" == *"once"* ]]; then
   # Nightly logrotation
@@ -41,5 +44,5 @@ else
 fi
 
 if [[ "$@" != *"quiet"* ]]; then
-  echo "... done!"
+  echo -e "${OVER}  ${TICK} Flushed /var/log/pihole.log"
 fi