Merge pull request #5 from NicolasT/master

Add binding for `tcbdbflags`
0.7.0 in META
Merge pull request #6 from domsj/v0.7.0

0.7.0 in META
adding the possibility to influence lcnum and ncnum
support for range_entries
ramping up for 0.8.0
- version in API
- range_entries
- lcnum ncnum (caching parameters)
correct version format for tag
Expose 'step' of tcbdbdefrag