Log Message:
Update to 0.18

Upstream changes:
0.18  2013-08-17
  - fix tests for pre-Test-More-0.88 (Paul Howarth, #10)

0.17  2013-08-16
  - work around [rt.perl #119311] which was causing incorrect error messages in
    some cases during global destruction (Graham Knop, #9)

0.16  2013-07-10
  - remove accidental Sub::Name test dep

0.15  2013-07-08
  - optionally use Sub::Name to name the try/catch/finally blocks, if available
    (Mark Fowler)

0.14  2013-07-05
  - also throw an exception for catch/finally in scalar context (RT#81070)

0.13  2013-07-04
  - fix tests failing on 5.6.x due to differing DESTROY semantics
  - excise superfluous local($@) call - 7% speedup
  - fix (fsvo) broken URLs (RT#55659)
  - proper exception on erroneous usage of bare catch/finally (RT#81070)
  - proper exception on erroneous use of multiple catch{} blocks
  - clarify exception occuring on unterminated try block (RT#75712)
  - fix the prototypes shown in docs to match code (RT#79590; thanks, Pushtaev
    Vadim)
  - warn loudly on exceptions in finally() blocks
  - dzilify