Log Message:
Update to 0.12
Update DEPENDS

Upstream changes:
0.12  Fri, 01 Nov 2013
  * Fix detection when loaded during global destruction by checking B::main_cv
    instead of B::main_start
  * Bump Sub::Exporter::Progressive dependency to fix loading in global
    destruction

0.11  Wed, 03 Apr 2013
  * Fix upgrading from version 0.09 or older

0.10  Tue, 26 Mar 2013
  * Rewrite pure-perl implementation in terms of B::main_start
    (greatly simplifies code)
  * Fix pure-perl behavior under $^C (RT#78619))
  * Separate XS portion into a compiler-optional dependency
    Devel::GlobalDestruction::XS