chore(changelog): 2.1.2 changelog

chore(changelog): 2.1.1 changelog

chore(changelog): 2.1.0 changelog

fix(sass): fix potential null pointer, though it really should never …

…happen

fix(sass): use webpack/rollup modules for non-optimized build, use op…

…timization data for prod/optimized buids

feature(webpack): use a vendor bundle to minimize code that needs re-…

…bundling and source map generation

chore(dependencies): add reflect-metadata to the dependency list

chore(package): remove peer dependencies as they cause more problems …

…than they solve

1.3.9

Merge pull request ionic-team#1063 from ionic-team/wip-lab-sdlc

Wip lab sdlc