Changes to allow saving the incidence angles when not using RTC
Do not dump the local incidence angles when not using RTC for now
Merge pull request #121 from asfadmin/us1954_don_angles

Do not dump the local incidence angles when not using RTC for now
Merge pull request #124 from asfadmin/master

Fixes from us1954_don_angles branch - adding local incidence without rtc