'list' path with 'memberships'
Merge branch 'master' of https://github.com/codenvy/platform-api into IDEX-948

Conflicts:
	codenvy-api-account/src/main/java/com/codenvy/api/account/server/AccountService.java
	codenvy-api-account/src/test/java/com/codenvy/api/account/AccountServiceTest.java
IDEX-948