fix [fix [mapper fix when the target table has exactly two attributes and no features are produced; isprogramirano] bolje isprogramirano] jos bolje isprogramirano

fix [mapper fix when the target table has exactly two attributes and no features are produced; isprogramirano] bolje isprogramirano

mapper fix when the target table has exactly two attributes and no features are produced; isprogramirano

added widgets that enable mapping unseen _relational_ examples to a precalculated _propositional_ domain for RSD, TreeLiker and Aleph-featurize

fixed a bug where databases with loops would crash treeliker, since an incorrect conversion would be made

adapted CV and discretization to work with DBContext; DBContext now has an internal representation with orange tables

generating an interpretation for an example: each attribute becomes one fact; also added support for discretization intervals

orange convert table supports no class datasets
database context supports multiple relations between two tables
wordification lowered time complexity
wordification w-items feature

wordification "sentence" caching
dbcontext bug ko sta dve entiti imeli lahko le eno relacijo med njima

- wordification widget
- popravki v DBcontext
- database to orange converter deluje na več tabelah

fixed a problem that occured if a mysql column contains strings with accents - strings that differ only by accents are treated as equal by MySQL  when doing distinct on that column. added a workaround by doing distinct by looking at the binary values instead. also added pretty print for DBContext.

- premaknjeno iskanje vseh vrednosti iz Database Context v Database to Orange Table

fixed the following: check the connection in mysql connect; pull the foreign keys only for the selected db; added escape symbols for columns in SQL queries; moved the attribute value selection dialog out of DB Context widget, since this should be the job of the learner.