chore(all): prepare release 2.0.0

Merge pull request #49 from niieani/master

feat(all): move out protractor-plugin to its own repo

chore(all): release 0.2.4

chore(all): prepare release 0.2.3

chore(all): prepare release 0.2.2

chore(all): prepare release 0.2.1

chore(all): prepare release 0.2.0

chore(all): prepare release 0.1.20

chore(all): prepare release 0.1.19

chore(all): prepare release 0.1.18