Qatar Airways tweeted today that it's banning all passengers flying from Beirut to carry pagers or walkie-talkies, and that the restriction includes checked and carry-on luggages as well as cargo. Qatar's flag carrier did not specify a timeline for these restrictions. This measure comes after the pager and walkie-talkie explosions that rocked Lebanon during this week and resulted in tens of kills and thousands of injured, mainly Hezbollah militants, and after the circular issued by…