Implement another control sequence.

CSI c queries terminal attributes.

termemu.js

@@ -970,6 +970,15 @@ var termemu = {
       }
       this.cmove(null, count - 1);
     }
+    else if (c == 99) {
+      /* c - query terminal attributes */
+      if (prefix !== null) {
+        debug(1, "Unimplemented CSI sequence: " + comstr);
+        return;
+      }
+      /* "CSI ? 1 ; 2 c" - VT100 */
+      sendback("1b5b3f313b3263");
+    }
     else if (c == 100) {
       /* d - go to row */
       if (prefix || postfix) {
@@ -1135,6 +1144,10 @@ var termemu = {
     if (codenum == 0 || codenum == 2) {
       setTitle(msgstr);
     }
+    else if (codenum >= 110 && codenum <= 118) {
+      /* Reset colors that can't be changed yet anyway */
+      debug(0, "Resetting dynamic color " + codenum);
+    }
     else
       debug(1, "Unimplemented OSC command " + codenum + " " + msgstr);
     return;