Add Tree Tagging to checklist

Add a tree tagging checklist to the general field work checklist.
Merge branch 'cond-fixes'
add notes to conductance protocol

add Tailor's notes to conductance protocol
Merge branch 'cond-fixes'

Conflicts:
	conductance-protocol.md
add notes to conductance protocol

Added some more of Tailor's notes to the conductance protocol.
Merge branch 'master' of https://github.com/schwilklab/protocols

Conflicts:
	field-work-checklist.md