integrate mailsync into mw 1

bin/mwimage

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+#!/bin/bash
+
+#get image resolution
+resolution=$(identify $1 | awk '{print $3}')
+IFS='x' # x is set as delimiter
+read -ra ADDR <<< "$resolution" 
+width=${ADDR[0]}
+height=${ADDR[1]}
+
+### Display Image / offset with mutt bar
+echo -e "2;3;\n0;1;0;42;$((width));$((height));0;0;0;0;$1\n4;\n3;" |  /usr/lib/w3m/w3mimgdisplay &

bin/mwopen

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+#!/bin/sh
+# Helps open a file with xdg-open from mutt in a external program without weird side effects.
+[ $(uname) = "Darwin" ] && opener="open" || opener="setsid xdg-open"
+mkdir -p "/tmp/$USER-mutt-tmp"
+file="/tmp/$USER-mutt-tmp/$(basename "$1")"
+rm -f "$file"
+cp "$1" "$file"
+$opener "$file" >/dev/null 2>&1 &