improve netcdf and slf4j version definitions

Description

Right now, NetCDF versions and slf4j versions are defined here and there on root's dependencyManagement as well as on some inner modules.

We should define them into the dependencyManagement, using some <properties>
<netcdf.version>xxx</netcdf.version>
<slf4j.version>xxx</slf4j.version>
...
</properties>

in order to have all versions defined once

Environment

None

Assignee

Unassigned

Reporter

codehaus

Triage

Components

Affects versions

Priority

Low
Configure