SystemUI: Network speed indicator (1/2)

4.4 the color of the statusbar text has changed to white

Conflicts:
	core/java/android/provider/Settings.java
SystemUI: Fix Traffic display on Kitkat 4.4
SystemUI: Improve Traffic stats display and cleanup code

fix fix fix fix fix fix fix fix fix fix

Signed-off-by: siracuervo <fl.siracusa@outlook.com.ar>
SystemUI: Update Traffic indicator

PS1: Don’t use /proc/net/dev …it is just fucking leaking battery
PS2: Remove white space and tabs
PS3: more comment on code
Signed-off-by: siracuervo <fl.siracusa@outlook.com.ar>