Updating New POS tags - 2nd attempt

There was a bug in the first script (a break), so it only updated on
instance of change in each sentence.

Updates below (same as previous change)
Retrieved the following tags from the Irish Dependency Treebank that
were lost in the original Universal mapping:
- Proper Noun (PROPN)
- Subordinate Conjunction (SCONJ)
- Interjection (ITJ)

Mapped the following tags from 2013 Universal POS-tag name to 2014
Universal POS-tag name:
- Punctuation . —> PUNCT
- Particles PRT —> PART
Infinitive marker

Mapped “aux” to “mark”
Relative clause markers - part 1

Half way through this file …
Changing “rel” to nsubj or dobj as per the paper’s guidelines for how
the Finnish scheme deals with them. Not sure what happens with the
English scheme.
See issues for concerns on rel cases that are not nsubj or dobj