fix redundant string casts; don't use deprecated jodatime api
Merge branch 'master' of https://github.com/PennStateCPR/os_cpr
eliminate redundant casts
eliminate redundant casts
eliminate redundant casts
eliminate redundant casts
eliminate redundant casts
use interface when appropriate
eliminate redundant casts
eliminate redundant toString() calls
remove unused imports
fix format strings - missing a %s
use interfaces (List, Map) rather than implementations when appropriate
remove redundant casts