IDEX-987: added Account API classes
Merge branch 'master' into trial_merge

Conflicts:
	codenvy-api-account/src/main/java/com/codenvy/api/account/server/AccountService.java
	codenvy-api-account/src/main/java/com/codenvy/api/account/server/dao/AccountDao.java
	codenvy-api-account/src/main/java/com/codenvy/api/account/shared/dto/SubscriptionHistoryEventDescriptor.java
	codenvy-api-account/src/main/java/com/codenvy/api/account/shared/dto/SubscriptionPaymentDescriptor.java
	codenvy-api-account/src/test/java/com/codenvy/api/account/AccountServiceTest.java
	codenvy-infrastructure-local/src/main/java/com/codenvy/api/local/LocalAccountDaoImpl.java
Merge branch 'master' into trial_merge

Conflicts:
	codenvy-api-account/src/main/java/com/codenvy/api/account/server/AccountService.java
	codenvy-api-account/src/main/java/com/codenvy/api/account/server/dao/AccountDao.java
	codenvy-api-account/src/main/java/com/codenvy/api/account/shared/dto/SubscriptionHistoryEventDescriptor.java
	codenvy-api-account/src/main/java/com/codenvy/api/account/shared/dto/SubscriptionPaymentDescriptor.java
	codenvy-api-account/src/test/java/com/codenvy/api/account/AccountServiceTest.java
	codenvy-infrastructure-local/src/main/java/com/codenvy/api/local/LocalAccountDaoImpl.java