[Tracker] Release 0.7.21 Delayed Until Friday

[Martyn Russell <martyn lanedo com>]

Hi all,

I was planning on doing the release as usual tonight, but I have found 
some regressions in the hierarchical-indexing branch which need fixing 
before it can be merged to master. It also contains the fix for the 
duplicate files appearing in the database issue which is the point of 
the branch and a blocker on releasing.

We will attempt to find this tomorrow and release during Friday.

--
Regards,
Martyn