Fix a long standing bug where cascade search checks dist version instead of module version from 02packages. Fix #188
Checking in changes prior to tagging of version 1.5020.

Changelog diff is:

diff --git a/Changes b/Changes
index a2ee8cd..679ca03 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,10 @@
 See http://github.com/miyagawa/cpanminus/ for the latest development.

+1.5020 Tue Jan 29 10:29:08 PST 2013
+   [Bug Fixes]
+      - Fixed a bug in --cascade-search that was checking a wrong version from 02packages file (Bryce Baril)
+      - Added a workaround for older version of File::Temp bug (kentnl)
+
 1.5019 Sun Dec 23 02:19:45 JST 2012
    [Bug Fixes]
       - Fixes a bug where --installdeps fail to configure dependencies with cpanfile (hoelzro)
Added CHECKSUMS verification with --verify option.

Oriignally written as a plugin, now ported to the core.
Verify SIGNATURE file with cpansign command
suppress warnings for CHECKSUMS
Merge branch 'verify-dists' into devel