Automatically remove read access when consent is withdrawn.

Fixed incorrect handling of zero as a metadata value.
Merge pull request #273 from keithj/devel

Automatically remove read access when consent is withdrawn.
Fixed typos
Permit the Fluidigm publishing script to ignore (and warn of)
directories where the user has omitted the CSV data file.
Modified the Fluidigm iRODS subscriber to provide a canonically styled
genotype call format.

Refined the definition of 'no call' in Fluidigm results.
Added semicolon at EOL.
Merge pull request #275 from keithj/devel

Updates to the Fluidigm iRODS subscriber
Removed MANIFEST.orig
Merge branch 'release-1.5.11'