Allow Multiline Checklist items. Implements #991 (#992)

                // create new item with new test

                int pos = mContainer.indexOfChild(itemView);

                insertItem(item.checkbox, pos + 1, newText);

                ((EditText) mContainer.getChildAt(pos + 1).findViewById(android.R.id.title)).setSelection(0);

                ((EditText) mContainer.getChildAt(pos + 1).findViewById(android.R.id.title)).setSingleLine(true);

                EditText editText = ((EditText) mContainer.getChildAt(pos + 1).findViewById(android.R.id.title));

                editText.setSelection(0);

                editText.setSingleLine(true);

                editText.setMaxLines(Integer.MAX_VALUE);

                editText.setHorizontallyScrolling(false);

                return true;

            }

            return false;

        });

        text.setSingleLine(item.checkbox);

        text.setMaxLines(Integer.MAX_VALUE);

        text.setHorizontallyScrolling(false);

        TextWatcher watcher = new TextWatcher()

        {