Fix port conflict issue for All-in-One loggregator & traffic_controller
Merge branch 'fix-port-conflict' of github.com:morikat/loggregator into morikat-fix-port-conflict

Signed-off-by: Johannes Tuchscherer <jtuchscherer@pivotallabs.com>
Refactoring for the config parsing in the main method

Signed-off-by: Johannes Tuchscherer <jtuchscherer@pivotallabs.com>