Remove ini4j dependency from tests.

Also remove duplicated code between IniPGProperties, IniOracleProperties, IniSQLServerProperties,
and IniMongoProperties by introducing a base superclass OnlineTestProperties.
Make shp export use the current working dir from Platform when given a relative path.

This avoids the functional test leaving dangling shape files in the project
folder that then can be committed by mistake.
Fix shp export functional test definition.

The 'Try exporting an inexistent feature type' scenario in ShpExport.feature was working
by accident because previous scenarios were leaving Poinst.shp in the project folder, but
the test definition had the wrong expectation.
make sure clone and fetch close the remote repo
Update the scm URL's and deploying repo in the root pom to point to boundlessgeo.com instead of opengeo.org
Avoid ClassCastExceptions in IniFileConfigDatabase.get(...).

Lacking a better tool to convert from String to the desired output type,
made it so it "manually" converts to the known types config options
are saved as.
Upgrading to GeoTools 10.5.

Requires change to OSM SpatiaLite export test to use new org.spatialite.JDBC driver.