Made hint working again
Fixed hint template, added warning that PostgreSQL is unsupported from now on.
Added part ID display
Added support for searching parts by their internal ID. The search syntax is id:<number>, e.g. id:1234

Note that combining the id search with regular search expressions might not give the expected results; this is due to the "hackish" nature of this filter. This will probably be fixed when we got proper search support by lucene or such.
Merge branch 'master' of github.com:partkeepr/PartKeepr