fix: replace bad reverted code change; allow js rate headers Last commit included an incorrect undo. I was going to move the Allow header/output format parsing earlier in the dispatch method. But I reverted it incorrectly and removed it instead. It has been added back in the former location. Header that allows javascript access to the rest rate limit header has been moved. The rate limit headers can be accessed by client side javascript regardless of the rate limit being exceeded.

# In Python 3 the "anydbm" module was renamed to be "dbm" which is now a
# package containing the various implementations. The "wichdb" module's
# whichdb() function was moved to the new "dbm" module.

try:
    # old school first because <3 had a "dbm" module too...
    import anydbm
    from whichdb import whichdb
except ImportError:
    # python 3+
    import dbm as anydbm
    whichdb = anydbm.whichdb