Merge pull request #67 from djs55/release.1.5.2

1.5.2 (2017-06-11):

• Add missing dependency on xenstore.client

1.5.1: Merge pull request #65 from djs55/topkg

1.5.1 (2017-05-30):

• Switch to jbuilder and topkg
• Update to shared-memory-ring-lwt

MirageOS 3 compatibility

• use MirageOS 3 error scheme & new dependencies; drop support for earlier versions

No more camlp4, use logs, fixed bugs

• Remove dependency on camlp4; use ppx instead
• opam: now pass lint check
• use logs rather than printf
• blkfront: serialise calls to connect
• blkfront: strip deprecated prefixes like aio: from params keys

Add `connect` method to interface

• Add an explicit connect to the interface signature (#35)

Update to latest io-page 1.4.0 interface

• Update to io-page.1.4.0 interface.
• Add an opam 1.2 file for more convenient development.
• Simplify travis configuration via centralised scripts.

Higher throughput via indirect descriptors

• blkback: add 'force_close' to more forcibly tear down the device
• blkback: make 'destroy' idempotent
• blkback: measure ring utilisation; segments per request; total
  requests and responses (ok and error)
• blkback: support indirect descriptors (i.e. large block sizes)
• blkfront: if the 'connect' string is at all ambiguous, fail rather
  than risk using the wrong disk
• blkfront: use indirect segments if available

Higher performance and less boilerplate

• blkback is now functorised over Activations, Xenstore and the backing store. It now contains all the device connect and disconnect boilerplate
• blkback now coalesces requests, analyses them for data dependencies, and issues them in parallel

First stable release

Merge pull request #14 from avsm/master

Updates to 1.0

Support Mirage 1.0

Merge pull request #13 from djs55/fix-connect

Fix connect