[SUPER] Mms bringup

* Add SMS template.
* Add QuickMessage along with privacy mode.
* Add unicode stripping.
* Add TimeStamps.
* Add mark as unread.
* Add ability to add SMS to calendar.
* Add split SMS.
* Add delay SMS sending.
* Add custom notification vibrations.
* Add checkbox receipients picker.
* Add user configurable enter key action on SMS typing.
* Add ability to expand text input field upto 6 lines.
* Add ability to select audio file from external storage.
* Remove an 1 second delay on message view displaying.
    (no longer needed for Android 4.3+)
* Fix inconsistent back button behavior.
* Fix null pointer expection when Phone is in low memory.
* Fix message type MMS/SMS not displayed properly.
* Fix slideshow can't be shown in the message.
* Fix process stops after sharing a video through message.

[重量级] Mms跟进

* 添加短信模板.
* 添加快捷短信以及隐私模式.
* 添加统一码分离替换.
* 添加时间戳.
* 添加标记为未读.
* 添加将短信加入日历.
* 添加短信分隔.
* 添加取消发送短信延时.
* 添加自定义通知振动模式.
* 添加群发短信时的接收人勾选框.
* 添加输入短信时用户可配置的回车键操作.
* 添加可将短信输入框展开至6行.
* 添加可从外部储存选取声音文件.
* 移除短信显示时的1秒的延时.
    (Android 4.3+不再需要此延时)
* 修复返回键操作的处理.
* 修复电话低内存状态时的NPE.
* 修复短信类型(彩信/短信)显示错误.
* 修复短信中幻灯片无法显示的问题.
* 修复在通过短信分享视频后进程停止.

Thanks to their respective authors for these implementations.
感谢这些特性的各自的作者.
All You Need is Dark

There's nothing you can do that can't be done
Nothing you can sing that can't be sung
Nothing you can say but you can learn to play the game
It's easy

There's nothing you can make that can't be made
No one you can save that can't be saved
Nothing you can do but you can learn to be you in time
It's easy

All you need is dark
All you need is dark
All you need is dark, dark
Dark is all you need
Add zh-rCN translation by @silverhoo1124

添加来自 @silverhoo1124 的简体中文翻译