motus 6.1.0

• fix bugs in tagme()
  • tagme(dir = ...) now correctly downloads projects as well as receivers and
    respects the skipXXX arguments
  • tagme() for receivers now skips node downloads if receiver is not a SensorStation
  • tagme() fails gracefully if the directory specified does not exist
• tagme(new = TRUE) now starts a download immediately
• Add srvTimeout() to specify the server timeout limit
• Clean up helper functions sunRiseSet() and timeToSunriset()
  • sunRiseSet() now required to run timeToSunriset()
  • Changed function argument names for clarity
• Replace use of ggmap with ggspatial for creating plots with static maps.
• Clean up docs for tagSum()
• Add helper function tagmeSample() for an in-memory connection to the sample
  data base for running examples
• Remove any functions that rely on deprecating spatial functions
• Remove year, month, day fields from activity tables.
• Standardize names in docs and examples
• Update tests internally
• Remove placeholder for French documents (will add back in once we get translations)