add example for TextCorpus and explain the relation to other formats …

…for annotated texts

Fix cardinality spec of parameterReference for FormTable (#113)

* closes #112

* extended test

release 1.1.1

Merge pull request #105 from cldf/version1.1

v1.1

Remove trailing comma in wordlist example.

address #34

Merge branch 'master' of github.com:glottobank/cldf