This release includes a lot of changes most important of which is SCM+ support!

Changes:

• e8ea9d9 Remove cpuprofile flag, add version flag.
• dad7ae0 Check lowercase version of msgType against registered parsers.
• 99be3e7 Parsers register themselves like in database/sql.
• 206c0dc Refactor packet config to allow modification. Closes #43
• 64a0ded Merge pull request #42 from bemasher/SCM+
• a6286ba Add prototype SCM+ parser.
• 99f5b70 Merge pull request #41 from bemasher/search
  cb511be Use the go standard library implementation of Boyer-Moore string search from the strings * package for preamble searching.
• 40470d4 Wait for a message from each meter given in -filterid when combined with -single. Closes #38
• 1e03a51 Clarify Pack description.
• c45fdef Remove old travis-ci badge.
• 1364a85 Remove flag debug print.
• 5555d22 Fix travis-ci badge.
• d453c86 Remove filter chain debug print.
• 42b1b3d Merge branch 'msghandler'
• 6b376a3 Write plain text encoder.
• f8797da Update travis-ci config to use new infrastructure.
• 938607e Oops, Filter is the method, MessageFilter is the interface.
• 7314e7a Simplify filter flag handling. Rename Filter interface.
• 548dac1 Refactor message filtering.
• 767fea7 Remove -fastmag from usage.
• 42ceb2c Remove FastMag
• 30ee13e Remove unnecessary benchmark.
• de00b1d Update usage and unique flag description.
• c4340c3 Fix symbol index for checksum copy.
• 34b9eb6 Refactor to check against checksum for uniqueness.
• dbdbcae minor fixes
• b9240f9 add -unique