Allow dissolution of insets inside mathed

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_1_5_X@21423 a592a061-630c-0410-9148-cb99ea01b6c8

src/mathed/InsetMathNest.cpp

@@ -1003,6 +1003,12 @@ goto_char_backwards:
 			cur.undispatched();
 		break;
 	}
+	case LFUN_INSET_DISSOLVE:
+		if (!asHullInset()) {
+			recordUndoInset(cur, Undo::ATOMIC);
+			cur.pullArg();
+		}
+		break;
 
 	default:
 		InsetMath::doDispatch(cur, cmd);
@@ -1112,6 +1118,10 @@ bool InsetMathNest::getStatus(Cursor & cur, FuncRequest const & cmd,
 		flag.enabled(false);
 		break;
 
+	case LFUN_INSET_DISSOLVE:
+		flag.enabled(!asHullInset());
+		break;
+
 	default:
 		ret = false;
 		break;

status.15x

@@ -50,6 +50,8 @@ What's new
 - It is now possible to enter greek and cyrillic characters and have them
   typesetted without switching to the proper language.
 
+- Inset dissolve now works in mathed.
+
 
 ** Bug fixes:
 *************