Allow for timeouts in acquiring a daemon lock

[pratikmallya]

The current code waits forever on acquiring a synchronization lock.
This can cause issues when there are a large number of daemons. In
such a case, the JVM can terminate after waiting for a long time.
This can often lead to confusion for users.

In this change we:

• add a specific exception (LockTimeoutException) to indicate timeouts when acquiring locks and
• handle that exception in the config fetching logic. This permits any
  lock implementation to throw the exception to indicate a timeout
  when trying to fetch the lock. The exception handler prints a
  helpful message allowing users to know that the Daemon is stalling
  on fetching the lock.