1. IBBlob: Defer reading of blob until read method called. This avoids having to read in an entire blob just to get the size of the blob. General performance improvement when opening datasets containing blobs.
2. Clearing a Blob now sets the corresponding field's modified flag.
3. IBLookupCombo: When not performing auto-complete, original query sort order is now used.
4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically determined.
5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post lazarus 1.6.0
7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages" compilation error.