fixed first error in #220
fixed second issue in #220
typo fixed according to #220
Merge pull request #223 from consp/PPOfix

PPO did not work, substracted from wrong variable
Merge branch 'lrc', remote-tracking branch 'upstream/master' into lrc
LRC overestimated, fixed to correct value
 Add indicator for CCI which uses LRC as basic moving indicator.
Added CCI as trading advisor and fixed missing entries into basemethods
Config file for CCI added to config.js