Log Message:
Update to 1.3123

Upstream changes:
1.3123 2014-04-12

   [ BUG FIXES ]
   * Test was skipping wrong number of tests if JSON was absent.

1.3122 10.04.2014

   [ DOCUMENTATION ]
   * GH #995: Documentation improvements. (Colin Kuskie)

   [ BUG FIXES ]
   * Serializer::Mutable now consider 'Accept' before 'Content-Type'.
    (GH#996, Bernhard Reutner-Fischer)
   * Serializer::Mutable now correctly deals with content-types
        with charsets. (GH#996, Bernhard Reutner-Fischer)
   * Without Clone(), Dancer::Error::dumper() could clobber
        values in deep structures. (GH#1006, fix by asergei)
   * 'session_name' in Dancer::Session::Abstract couldn't be
        redefined. (GH#1004, patch by Lee Carmichael)

   [ MISC ]
   * Unused function 'path_no_verify' removed. (GH#998,
        reported by mjemmeson)