BUMP crawl VERSION TO 1.5
ADD Josh M. London AS AUTHOR FOR crwMLE
ADD .Rhistory TO .gitignore
ADD SUPPORT FOR 'spacetime' objects

added a check for objects inheriting "ST" and converstion to a data.frame. Extracts the polar.coord,Time.name and coord parameters given default naming conventions for "ST" objects converted to data.frame.
Time.name NOT REQUIRED FOR spacetime OBJECTS

changed the check for missing Time.name to provide an exception if the data object is a spacetime object
CHANGE INHERITS CHECK FROM 'ST' TO 'STIDF'
UPDATE DOCUMENTATION/ROXYGEN FOR crwMLE

add changes to reflect the addtion of 'spacetime' support
ADD 'spacetime' TO SUGGESTS
Merge pull request #2 from NMML/jml/spacetime

Jml/spacetime