opened
Vnthf
username_0
#### What does this PR do?

When I customize keyMap options in initial code, 

I deprecated CTRL+ENTER

```javascript
options = {
 keyMap: {
                pc: {
                    'ENTER': 'insertParagraph',
                    'CTRL+Z': 'undo',
                    'CTRL+Y': 'redo',
                    'TAB': 'tab',
                    'SHIFT+TAB': 'untab',
                    'CTRL+B': 'bold',
                    'CTRL+I': 'italic',
                    'CTRL+U': 'underline',
                    'CTRL+SHIFT+S': 'strikethrough',
                    'CTRL+BACKSLASH': 'removeFormat',
                    'CTRL+SHIFT+L': 'justifyLeft',
                    'CTRL+SHIFT+E': 'justifyCenter',
                    'CTRL+SHIFT+R': 'justifyRight',
                    'CTRL+SHIFT+J': 'justifyFull',
                    'CTRL+SHIFT+NUM7': 'insertUnorderedList',
                    'CTRL+SHIFT+NUM8': 'insertOrderedList',
                    'CTRL+LEFTBRACKET': 'outdent',
                    'CTRL+RIGHTBRACKET': 'indent',
                    'CTRL+NUM0': 'formatPara',
                    'CTRL+NUM1': 'formatH1',
                    'CTRL+NUM2': 'formatH2',
                    'CTRL+NUM3': 'formatH3',
                    'CTRL+NUM4': 'formatH4',
                    'CTRL+NUM5': 'formatH5',
                    'CTRL+NUM6': 'formatH6',
                   // 'CTRL+ENTER': 'insertHorizontalRule',
                   // 'CTRL+K': 'showLinkDialog'
                },

                mac: //same
}


```

Error occured!

![image](https://cloud.githubusercontent.com/assets/6292309/15917752/5bf45758-2e3a-11e6-8210-117fdbb4d088.png)

Because Hr button must have tootip key in code.

But button must appear anytime even if button dosen't have shortcut.
fixed tooltip bug when customize keymap 
issue
created
lqez
username_1
Thanks!
comment