fix(live-server): update android platform path (ionic-team#1407)

chore(): bump node-sass

fix(): pin uglify-es

Closes ionic-team#1353

fix(): pin ws version

fix(dependencies): update angular build optimizer for a source map fix

fix(aot): remove template validation until we can properly handle the…

… error message format

3.1.2

fix(webpack): revert to 3.6.0 for faster builds

fix(template): fix bug with using dollar sign within templates

chore(changelog): updating changelog for 3.1.0 release