This prevents the caller from being able to accidentally lock or
unlock access to the filter internal state.
While here, remove several defers that do not gain us any readability,
and only hurt our performance.
This commit finishes the work started by @dajohi on bloom filters.
- Rename the package from bloomfilter to bloom
- Rename New function to NewFiler
- Rename Load function to LoadFilter
- Rename BloomFilter type to Filter
- Rename Contains to Matches
- Correct tx match handling to match all inputs and outputs instead of
only the first one
- Optimize murmur hash function by using constants
- Optimize the merkle block creation and reduce num of memory allocations
required
- Make MsgFilterLoad concurrent safe as intended
- Update various code consistency issues
- Add a lot of comments
- Improve tests
- Make the code golint clean
