Add vector support to abs block. Remove unused num_inputs from xml.
blocks: Added callback to vector source GRC bindings
Fix CMake abuse for assembly (.s) files
tags_wip
Fix(?) prune_tags: needs verification
Fix prune_tags
runtime: speed up all the things
Formatting fix-ups
Merge remote-tracking branch 'willcode/master'
blocks: make tagged stream to pdu output optional
Merge pull request #1 from douggeiger/tags_wip

Formatting fix-ups
volk: add feature for json results export
Merge remote-tracking branch 'geiger/master'
Merge remote-tracking branch 'nwest/volk-json'
Merge branch 'maint'
Merge remote-tracking branch 'osh/tags_wip'
digital: clock recovery fix relative limit
digital: clock recovery delete unused variables
digital: clock recovery more verbose documentation
digital: adapt clock recovery QA