getting ready to release 0.9.3

Release.

[maven-release-plugin] copy for tag swagger-springmvc-parent-0.8.8

[maven-release-plugin] copy for tag swagger-springmvc-parent-0.8.7

[maven-release-plugin] copy for tag swagger-springmvc-parent-0.8.6

[maven-release-plugin] copy for tag swagger-springmvc-parent-0.8.5

[maven-release-plugin] copy for tag swagger-springmvc-parent-0.8.4