Update to 0.05

Upstream changes:
0.05 2014-03-26
    - Improved the DESCRIPTION section, particularly the first paragraph.
    - Added a bunch more Exporter modules to the SEE ALSO section.

0.04 2014-03-26
    - Added Constant::Exporter::Lazy to SEE ALSO
    - Had forgotten to put README and Changes in MANIFEST. Sigh.

0.03 2014-03-25
    - Now maintained by NEILB
    - Fixed typo reported by dsteinbrunner in RT#87096
    - Now use strict and warnings
    - Added github repo to metadata and pod
    - Added README
    - Specified min perl version 5.6.0 in metadata
    - Set PREREQ_PM, TEST_REQUIRES, CONFIGURE_REQUIRES in Makefile.PL
    - Added a load of modules to SEE ALSO.

(wen)