Update scripts

scripts/common/echo.sh

@@ -9,7 +9,11 @@
 #   source "$(dirname "$0")/echo.sh"
 # fi
 
-ECHO="echo"
+if [ "$OS" = "Windows_NT" ]; then
+  ECHO="echo -e"
+else
+  ECHO="echo"
+fi
 
 # task colors
 COLOR_STRONG="1;35"  # Magenta

scripts/common/host.sh

@@ -32,7 +32,7 @@ if _host_contains_ "$_UNAME_S" "Linux"; then
   HOST_OS="Linux"
 elif _host_contains_ "$_UNAME_S" "Darwin"; then
   HOST_OS="Mac"
-elif [ -n "$Windows_NT" ]; then
+elif _host_contains_ "$_UNAME_S" "MSYS\|MINGW"; then
   HOST_OS="Win"
 else
   echo >&2 "-- HOST: unknown os :("