prevent KeyError for unknown case types
Merge pull request #151 from dimagi/typeinfo

prevent KeyError for unknown case types
allow additional session data for case hierarchy
Merge pull request #153 from dimagi/case-hier-sess

allow additional session data for case hierarchy
validate the id passed in for sync log
Merge pull request #154 from dimagi/safe-synclog

validate the id passed in for sync log
remove force_close because it is used nowhere
Merge pull request #157 from dimagi/remove-force_close

remove force_close because it is used nowhere
Merge branch 'master' into commtrack