[#7177] Fix Trac 1.0.1 import problems
[#7177] Fix Trac 1.0.1 import problems

- Handle lack of timezone info gracefully
- Handle BOM markers at top of file

Signed-off-by: Tim Van Steenburgh <1a3790b263e2c40611d4461ca2cdd82f6666cb61@gmail.com>

heiths/allura,apache/incubator-allura,apache/incubator-allura,apache/allura,apache/allura,apache/incubator-allura,heiths/allura,apache/allura,heiths/allura,lym/allura-git,lym/allura-git,apache/allura,lym/allura-git,lym/allura-git,apache/incubator-allura,heiths/allura,heiths/allura,lym/allura-git,apache/allura