chore(package): update systemjs-builder to version 0.15.19 (#224)
chore(package): update systemjs-builder to version 0.15.19 (#224)

https://greenkeeper.io/
fs535/ng2-select,DarthKurt/ng2-select,fs535/ng2-select,triersistemas/ng2-select,DarthKurt/ng2-select,ifxtech/ng2-select,fs535/ng2-select,JulianWielga/ng2-select,ifxtech/ng2-select,JulianWielga/ng2-select,triersistemas/ng2-select,triersistemas/ng2-select,valor-software/ng2-select,valor-software/ng2-select