Created knowledgeDB client base. Does not yet allow for queries, but should start a connection. Also put intelliJ project files in gitignore.
Modified KnowledgeDBClient. Added methods for executing single and queries parameterized queries.

Added Queries class for the queries.

Added Row class for parsing a row from a ResultSet.

Added comments for all classes.
Added missing Row class.
Added and fixed missed/bad comments.
Fixed some comments found by Arjen.
Merge pull request #50 from AgileManufacturing/knowledgeDatabaseClient

Knowledge database client
Moved the classes to a new package (rexos.libraries.knowledge).
Fixed header comments.
Merge pull request #51 from AgileManufacturing/knowledgeDatabaseClient

Moved the classes to a new package (rexos.libraries.knowledge).
Added query for retrieving services per equiplet.
added author
Merge remote-tracking branch 'origin/development' into development
removed import
Merge remote-tracking branch 'origin/development' into development
Tidied up the ProductStepMessage and ServiceStepMessage a bit.

Dummy service now returns an array containing a single ServiceStepMessage when asked for serviceSteps.
Merge remote-tracking branch 'origin/development' into development
Merge branch 'ServiceFactory' of https://github.com/hesselmeulenbeld/HUniversal-Production-Utrecht into development
BlackboardClient no longer creates a new thread if nothing has changed
to the subscriptions list. Also added a null check when unsubscribing
to guard against situations where creating the thread has failed.
made Module.java
Merge remote-tracking branch 'origin/development' into development