Merge pull request #135 from davemfish/release/0.3.1

updated HISTORY for release 0.3.1

Merge pull request #131 from davemfish/release/0.3.0

updated HISTORY for release 0.3.0

update HISTORY for 0.2.1 release (#114)

Merge pull request #104 from davemfish/release/0.2.0

History update for release 0.2.0

Merge pull request #76 from davemfish/task/release-0.1.2

updating HISTORY for a 0.1.2 release

Merge pull request #74 from davemfish/task/release-0.1.1

updated HISTORY file for 0.1.1 release

update development status in package metadata.