NOJIRA Decouple uportal-java-api from platform-parent.

uportal-java-api (platform-java-api) POM now inherits from jasig-parent
instead of platform parent. Preserved the aggregation relationship for
now (until platform-java-api is released).

Changed versioning scheme for platform-java-api to start at
0.1.0-SNAPSHOT (was 1.1.0-SNAPSHOT). This is intended to emphasize
1) that this artifact should be managed independently of platform
"proper" and 2) that the API itself should be considered relatively
unstable.
[maven-release-plugin] prepare release ssp-platform-java-api-0.1.0