Add recordingtitle as per PICARD-515

This fix adds a %_recordingtitle% script variable for use in renaming as
per PICARD-515.
Add News.
Merge branch 'sophist_add_recordingtitle' of git://github.com/Sophist-UK/picard into Sophist-UK-sophist_add_recordingtitle

Conflicts:
	NEWS.txt