Adding Material Drawer...

Referring To
1. http://www.materialpalette.com/
2. https://developer.android.com/training/material/theme.html#ColorPalette
3. http://www.murrayc.com/permalink/2014/10/28/android-changing-the-toolbars-text-color-and-overflow-icon-color/
4. http://android-developers.blogspot.kr/2014/10/appcompat-v21-material-design-for-pre.html