Escape characters used in escape sequence to avoid triggering bugs in Apple Terminal

Closes #45 #57 #58 #86.

lib/termsupport.zsh

@@ -4,10 +4,10 @@
 #Limited support for Apple Terminal (Terminal can't set window or tab separately)
 function title {
   if [[ "$TERM" == "screen" ]]; then 
-    print -Pn "\ek$1\e\\" #set screen hardstatus, usually truncated at 20 chars
+    print -Pn "\ek$1:q\e\\" #set screen hardstatus, usually truncated at 20 chars
   elif [[ ($TERM =~ "^xterm") ]] || [[ ($TERM == "rxvt") ]] || [[ "$TERM_PROGRAM" == "iTerm.app" ]]; then
-    print -Pn "\e]2;$2\a" #set window name
-    print -Pn "\e]1;$1\a" #set icon (=tab) name (will override window name on broken terminal)
+    print -Pn "\e]2;$2:q\a" #set window name
+    print -Pn "\e]1;$1:q\a" #set icon (=tab) name (will override window name on broken terminal)
   fi
 }