Added log_mapper file
Updated log_mapper
Fixed log mapper code
Added log ticker
Added log tick formatter
Changed linearaxis to continuousaxis and added logaxis
Users can now ask for log axis
Added mapper_type attribute
mapper_type attribute added to switch to appropriate mapper for ticker
Added LogAxis, LogMapper, LogTicker, and LogFormatter
Added LogMapper, LogAxis, LogTicker and Formatter
Implemented map_to_target for logmapper
removed print statement
Added Log_Axis on JS Side
removed console.log statement
added mapper_type to Plot
added mapper type to change to log
fixed typo
fixed plotting_helpers to original
Merge remote-tracking branch 'upstream/master' into feature/logaxis