Release 1.5 (2013-02-27): Bug Fix

1st chunk of `doc/manual/source/release-notes/rl-1.5.md`

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# Release 1.5 (2013-02-27)

This is a brown paper bag release to fix a regression introduced by the
hard link security fix in 1.4.

Title: Release 1.5 (2013-02-27): Bug Fix

Summary

Release 1.5 is a bug fix release addressing a regression caused by a security fix implemented in version 1.4.