Format improvements and platforms coverage

Changes since 2.1.1:

• Bloom filter parameters now are stored and loaded with snapshot
• Added some support utilites and updated docs
• Removed legacy dependencies
• Arranged and tested build on FreeBSD and Solaris
• Fixed problem with compatibility of snapshots produced by daemon on different platforms (struct padding issue)
• Fixes for 32bit systems

v2.1.1: Minor improvements

Changes since 2.1

• Exclusive dump at exit
• Fixed static build

Improved persistence and CLI

Changes since 2.0:

• Handling all signals in event loop for code simplification and AS-safety
• Added internal dump timer
• Atomic commit of snapshot file
• Bloom filter parameters passed via command line args
• Install target in Makefile
• No libssl dependency

v2.0: Merge pull request #10 from Snawoot/md6

• Switched to MD6 hashing. Removed OpenSSL dependency.
• Signigifantly refactored code
• Bloom filter parameters are variable now (but there is no corresponding UI yet)

Production version

Stable program version tested on production systems