Bump version and media types

Version 2.1.0

Version 2.0.0

Merge pull request #984 from zalando/feature/gh-593-permalinks

Permalinks UI

Merge pull request #987 from zalando/gh-964

manual publish to sonatype oss #964

Merge pull request #853 from roxspring/feature/gh-799-improved-x-zall…

…y-ignore

More reliable `x-zally-ignore`

Merge branch 'feature/collection-rules-use-swagger-validate' into 'de…

…velop'

Feature/collection rules use swagger validate

Closes #2

See merge request pdds/zally!39

Merge pull request #468 from zalando-incubator/documentation-updates-…

…for-1.1-release

Preparing documentation for 1.1 release (#457)

Merge pull request #468 from zalando-incubator/documentation-updates-…

…for-1.1-release

Preparing documentation for 1.1 release (#457)

Merge pull request #281 from zalando-incubator/fix-readme-version-typo

Minor CLI readme fix