BLD: make BUILD_DIR a variable
RLC: update version to 0.11-rc1
DOC: update figure captions
DOC: update table descriptions
SML: add minor comments
ENH+BK: write output in input directory, not its parent
NF: add "nBuOrNada" that has empty text string when no bursts where detected
NF: add "avgBuFreq60" to provide number of bursts per minute
DOC: update table with nBuOrNada
MSC: cleanup