Add pt-pt translations

Portuguese translations..

Woops, I only wanted to add the Pt translations, although the commit to fix the compiling errors in ICS came along with it.
Regarding the compilation errors in ICS, it is because in the TextView of the frequency, there is no android:fontFamily in ICS (lines 28/29 of main.xml), and the Notification.Builder.build() does not exist in ICS, although is just a new name for Notification.Builder.getNotification() which exists in ICS+ but deprecated in JB.
Any chance to maintain backward compatibility with ICS?