0.3.4

1. Adding treebanks: TIBIDABO sentences of length 11 and 12 (partially treebanked, as much as we were able to do now).
2. Got rid of outdated operator :< which was still found in some places.
3. Updated the use of exceptions to Freeling tags
4. Removed WLING, CTO, CROM from MRS output
5. Further modifications to the Freeling-LKB interface.
6. AGR constrained between the subject and the complement of the copula v_ap_ser_synsem; no obvious regressions in TIBIDABO 1-12; modest improvement in ambiguity (e.g. 35.38->35.42 on tbdb06, which is due to 2 sentences, for which the ambiguity goes down from 9 to 8 and from 397 to 370); improvements in the learner treebank.