fix(file-list): use lodash find()
fix(file-list): use lodash find()

Use lodash find() instead of ES6 Array.prototype.find.
ES6 find is not available on standard node installations
(without the harmony flag)

Closes #1533

clbond/karma,astorije/karma,panrafal/karma,simudream/karma,IsaacChapman/karma,marthinus-engelbrecht/karma,johnjbarton/karma,mprobst/karma,stevemao/karma,panrafal/karma,aiboy/karma,Sanjo/karma,clbond/karma,powerkid/karma,powerkid/karma,chrisirhc/karma,codedogfish/karma,codedogfish/karma,powerkid/karma,buley/karma,IveWong/karma,marthinus-engelbrecht/karma,kahwee/karma,clbond/karma,tomkuk/karma,buley/karma,chrisirhc/karma,johnjbarton/karma,oyiptong/karma,pmq20/karma,skycocker/karma,timebackzhou/karma,jjoos/karma,skycocker/karma,jamestalmage/karma,stevemao/karma,tomkuk/karma,IsaacChapman/karma,kahwee/karma,Dignifiedquire/karma,oyiptong/karma,clbond/karma,Sanjo/karma,astorije/karma,johnjbarton/karma,SamuelMarks/karma,tomkuk/karma,kahwee/karma,stevemao/karma,harme199497/karma,wesleycho/karma,codedogfish/karma,maksimr/karma,Dignifiedquire/karma,shirish87/karma,unional/karma,wesleycho/karma,IveWong/karma,IsaacChapman/karma,pedrotcaraujo/karma,jamestalmage/karma,chrisirhc/karma,Dignifiedquire/karma,skycocker/karma,karma-runner/karma,harme199497/karma,shirish87/karma,patrickporto/karma,chrisirhc/karma,panrafal/karma,karma-runner/karma,timebackzhou/karma,xiaoking/karma,maksimr/karma,powerkid/karma,astorije/karma,IveWong/karma,oyiptong/karma,jjoos/karma,aiboy/karma,pedrotcaraujo/karma,xiaoking/karma,oyiptong/karma,SamuelMarks/karma,patrickporto/karma,simudream/karma,astorije/karma,karma-runner/karma,simudream/karma,patrickporto/karma,unional/karma,jjoos/karma,tomkuk/karma,pmq20/karma,jjoos/karma,johnjbarton/karma,ernsheong/karma,xiaoking/karma,pmq20/karma,simudream/karma,Sanjo/karma,david-garcia-nete/karma,mprobst/karma,karma-runner/karma,marthinus-engelbrecht/karma,stevemao/karma,jamestalmage/karma,pedrotcaraujo/karma,buley/karma,Sanjo/karma,unional/karma,jamestalmage/karma,kahwee/karma,ernsheong/karma,aiboy/karma,xiaoking/karma,harme199497/karma,wesleycho/karma,shirish87/karma,marthinus-engelbrecht/karma,SamuelMarks/karma,buley/karma,harme199497/karma,IveWong/karma,timebackzhou/karma,unional/karma,maksimr/karma,ernsheong/karma,mprobst/karma,skycocker/karma,pedrotcaraujo/karma,codedogfish/karma,aiboy/karma,timebackzhou/karma,wesleycho/karma,david-garcia-nete/karma,david-garcia-nete/karma,Dignifiedquire/karma,pmq20/karma,IsaacChapman/karma,patrickporto/karma