新增grunt文件

Signed-off-by: hancong03 <121371790@qq.com>
新增特殊字符区域

Signed-off-by: hancong03 <121371790@qq.com>
Merge branch 'dev-1.0.0' of github.com:fex-team/kityformula-editor into dev-1.0.0
修改demo里引用资源的路径

Signed-off-by: hancong03 <121371790@qq.com>