[Bumped Version] 5.1.0

ref/ Generate changelog

Merge pull request maximegris#257 from bampakoa/docs

Fix typos in README

fix/ build serve & electron with single tsc command

fix/ jslib in main process error

Upgrade Angular (6.1.2) deps

fix/ version angular (revert 6.0.6 -> 6.0.5)

misc/ update Changelog

misc/ update changelog

misc/ update changelog