improve unit tests - closing spark contexts
status request test
initialize context before each test case
evaluation servlet wip
test query
integration WIP
refactoring
useful one-liner
trim only quote characters
excluding default akka (spark brings its own)
optimization by intellij
adding serialization
fixing problem with not removing double quotes
adding more serialization
extracting histdatainputparser
adding debug log4j configuration
sparkcontextaware trait
refactor to use new trait
rename timestamp parser
tests for histdata input parser
pair generators is serializable
refactoring to a separate serializable class