Merge pull request #4 from pchiusano/master

acquire now properly lazy in computing only the size it needs
Add more bitwise operators
Avoid use of BitVector.size when possible
Merge pull request #5 from scodec/topic/avoid-bitvector-size

Avoid use of BitVector.size when possible
Make BitVector#sizeLessThan remember upper and lower bounds on size

This implementation only updates bounds on the top-level bit vector
that `sizeLessThan` is called on. I tested an implementation that
passes a bounds updating continuation to `go` but it performed worse
in the unit tests.

Also, note that `Append.size` makes the bounds tight for that node.
Further, `sizeLessThan` calls `size` on the left side of append
nodes, resulting in many tree nodes getting tight bounds anyway.

Squashed commit of the following:

commit c64519a94363a03cde2d2c178ae93e2b079a9c16
Author: Michael Pilquist <mpilquist@gmail.com>
Date:   Mon Mar 10 12:40:42 2014 -0400

    Fix failing test

commit 7b7320bbf145239afee986b934d750ce9451eaba
Author: Paul Chiusano <paul.chiusano@gmail.com>
Date:   Mon Mar 10 10:51:24 2014 -0400

    Beefed up tests for sizeLess/GreaterThan, including adding some concurrency; concurrency test is currently failing

commit fc2eba1488d1f657a46b345808b88b37e4de6f87
Author: Michael Pilquist <mpilquist@gmail.com>
Date:   Fri Mar 7 20:43:43 2014 -0500

    Take advantage of size bounds in append case

commit 628fb472af308a90e5ccf5b4c3386eb76b04f609
Author: Michael Pilquist <mpilquist@gmail.com>
Date:   Fri Mar 7 17:43:33 2014 -0500

    Make BitVector#sizeLessThan remember upper and lower bounds on size.

    This implementation only updates bounds on the top-level bit vector
    that `sizeLessThan` is called on. I tested an implementation that
    passes a bounds updating continuation to `go` but it performed worse
    in the unit tests.

    Also, note that `Append.size` makes the bounds tight for that node.
    Further, `sizeLessThan` calls `size` on the left side of append
    nodes, resulting in many tree nodes getting tight bounds anyway.
Bump to ScalaTest 2.1 final
Setting version to 1.0.0-RC2
Bump scala 2.11 version
Scala 2.11-RC1 fixes
Setting version to 1.0.0-SNAPSHOT
Travis Scala 2.11-RC1 bump
Doc updates
Add ByteOrdering enumeration
Add ByteOrdering enumeration
Added size{Less,Greater}ThanOrEqual functions, and using these in place of manual +/-1 calls which were not Long-overflow safe.

Also fixed performance bug where .take would not bail early when the number of bits taken exceeded the size of a subtree.
Merge pull request #7 from scodec/topic/size-lessThanOrEqual

Added `size{Less,Greater}ThanOrEqual` functions, and using these in place ...
Resurrected original version of toString
Merge remote-tracking branch 'origin/master'
Some special casing in BitVector.compact to boost performance