killbill-aplcache

Added account balance calculation to invoice and next billing …

date calculation to entitlement - unit tests still needed for both

Adding delete to account

Merged with master

comments for tag definition API

add company name to account; tag definition API

Merge branch 'master' of github.com:ning/killbill into killbill-account Conflicts: account/src/main/resources/com/ning/billing/account/dao/AccountSqlDao.sql.stg api/src/main/java/com/ning/billing/ErrorCode.java invoice/src/main/java/com/ning/billing/invoice/model/DefaultBillingEvent.java invoice/src/test/java/com/ning/billing/invoice/tests/DefaultInvoiceGeneratorTests.java

Improve exception handling

Correct typos in MemoryEventBus

Separate control tags and descriptive tags; add ControlTagType …

enum; add tests; modify account

improve checks for existence of accounts on create/update; …

add change notifications for account (time zone, locale, next billing date); update dao tests to check time zone, locale, next billing date