Merge pull request achanda#79 from sharksforarms/issue-#62

Parse Ipv4Addr using Ipv4Addr::from_str

Merge pull request achanda#47 from achanda/v0.12.4

Uprev for release

Merge pull request achanda#44 from achanda/release

Uprev for release

Merge pull request achanda#40 from achanda/release

Uprev for release

Merge pull request achanda#33 from achanda/metadata

Add some metadata and incr version