Merge pull request #70 from luisromangz/8.2-SNAPSHOT

Added needed methods for #80672: get a layer's style, copy a layer's sty...
[#69825] Creates temporary layers in geoserver based in new tables in Postgresql.
Merge pull request #71 from juanluisrp/69825-elementos-temporales

[#69825] Creates temporary layers in geoserver based in new tables in Po...
[maven-release-plugin] prepare release 8.2
[maven-release-plugin] prepare for next development iteration