修复Quiver中中问输入的问题

When I type the Chinese character in a Markdown cell, there is a offset in the cursor location.

PastedGraphic-1

The location of cursor is not the location between two characters.

屏幕快照 2015-12-09 下午2.21.07

I changed the css style of ace_editor, which makes the font-family to SimSun:

Soluation

.markdown-cell .ace_editor {
background-color: #FFFFFF;
color: #333;
font-size: 12px;
font-family: SimSun;
line-height: 1.5;
}

bug fixed.