Parse arguments with getopt in innodb_log

This allows enabling --dump-blocks at run-time and gives better help
text.
Increase type column width

COMP_REC_CLUST_DELETE_MARK is 26 characters.
Merge pull request #10 from maginatics/innodb-log-getopt

Parse arguments with getopt in innodb_log
Merge pull request #11 from maginatics/type-column-width

Increase type column width
Add option to print only specific space-id
Add support for VARBINARY
Merge pull request #13 from maginatics/space-id

Add option to innodb_log to print only specific space-id
Merge pull request #14 from maginatics/varbinary

Add support for VARBINARY
Add support for BINARY
Merge pull request #15 from maginatics/binary

Add support for the BINARY and VARBINARY types.
Allow relative paths for record describers

Previously innodb_space required an absolute path.
Merge pull request #16 from maginatics/require-relative-path

Expand pathname given as argument to --require to allow for a relative pathname to be loaded even if the current directory is not part of the load path (as is the case with Ruby 1.9 and later).
Add AUTHORS.md
Fix email addresses for markdown
Basic cleanups
Bump version to 0.8.5