Bump version to 0.8.8.1

Merge pull request locationtech#459 from ngageoint/0.8.8-release

Updates for 0.8.8 release

Merge pull request locationtech#412 from ngageoint/087-release

Updates for 0.8.7 release

Merge pull request locationtech#358 from ngageoint/0.8.6-release

0.8.6 release

Merge pull request locationtech#326 from ngageoint/0.8.5-release

release v0.8.5

Merge pull request locationtech#313 from ngageoint/0.8.4-release

release v0.8.4

Merge pull request locationtech#247 from ngageoint/GEOWAVE-234

Geowave 234

Merge pull request locationtech#209 from ngageoint/0.8.2-release

release v0.8.2

Merge pull request locationtech#113 from ngageoint/GEOWAVE-112

Geowave 112

release 0.8.0