Merge pull request swagger-api#8962 from swagger-api/prepare-release-…

…3.0.3

prepare release 3.0.3

Merge pull request swagger-api#8961 from swagger-api/prepare-release-…

…2.4.0

prepare release 2.4.0

Merge pull request swagger-api#8830 from swagger-api/prepare-release-…

…3.0.2

prepare release 3.0.2

Merge pull request swagger-api#8778 from swagger-api/prepare-release-…

…3.0.1

prepare release 3.0.1

Merge pull request swagger-api#8671 from swagger-api/prepare-release-…

…3.0.0

prepare release 3.0.0

Merge pull request swagger-api#8233 from swagger-api/prepare-release-rc1

bump project version and swagger core/parser dependency versions.

removed Java 7 as an option on README.

update pom.xml in swagger components to 2.3.1

update version to 2.3.0

Merge pull request swagger-api#6071 from swagger-api/update-parser

updated parser