Space reclamation and compaction

Topics related to reclamation and compaction.

• Introduction to Space Reclamation and Compaction
  When a stream is replaced or deleted, the space it occupies is not immediately available for re-use by other streams.
• Reclamation And Compaction, Incrementally
  Explains how to reclaim and compact incrementally by using smaller steps.
• Reclamation And Compaction, As A Single Job
  Describes the use of ReclaimL() and CompactL() functions.