Add cayley to projects using bolt list.
Merge pull request #248 from miku/cayley

Add cayley to projects using bolt list.
add bleve to project list
Merge pull request #249 from deoxxa/patch-1

add bleve to project list
Tentacool is using bolt too ;)
Merge pull request #250 from guilhem/tentacool

Tentacool is using bolt too ;)
Fixed typo in README.md
Merge pull request #252 from extemporalgenome/patch-1

Fixed typo in README.md
Add caveat for memory usage.

This commit adds a caveat for high memory usage shown by processes with large
Bolt databases. This is expected behavior and is handled by the OS page cache.
Merge pull request #254 from benbjohnson/caveat-rss

Add caveat for memory usage.
Rework build to support more liberal unix variants.

Rather than having the build setup such that it will only work on the
specifically defined operating systems, this commit modifies it to use
more liberal !windows,!plan9 build tag for the unix specific bits.

This means bolt will compile on more Operating Systems such as OpenBSD,
FreeBSD, and NetBSD.

See boltdb/bolt#257 for discussion.