modified:   app/src/main/res/menu/main.xml
	modified:   app/src/main/res/values/styles.xml
		Corrected width of application for screens smaller than tvdpi.
		Changed order of menu items: Settings and About go last.
	modified:   app/src/main/res/drawable-nodpi/dark_btn_shape.xml
	modified:   app/src/main/res/values/dimens.xml
		Modified styles to have rounded_btn's radius in dimens, density-dependent.
Implemented dimensions, styles and drawables for normal screen (like for phone, not a tablet).
Added image switcher, added two more beautiful images of my own.
Screen change forbidden for phone (if screen size is normal, not big).
Implemented app to always show overflow menu button, even if device has hard menu button.