Update libwire with wire_channel deadlock fix
Improve sending of tar padding

Instead of sending in small chunks we can use the full buffer for a
single write.
Move remaining count tracking to its own function
Increase buffer size for file collection
Add collection by executing a process
Update libwire with pipe error handling
Let gcc check the docket_log function arguments
Update libwire with bug fixes
Fix exec collector

There was remnant code in there that broke things and adding a timeout
for when exec takes too long.
Some fixes to the sample collection list
Flatten filename in tarball

This makes browsing the files much easier as it reduces the number of
directories that need to be traversed.