Fix bug :  Stanford tokenizer -- request to add -outputFormat inlineXML #735
removed set and dict comprehensions for python 2.6 compatibility; removed u string prefixes for python 3 compatibility
updated download URL, resolves issue #812
moved examples to new nltk_teach repository (https://github.com/nltk/nltk_teach/commit/d208fb1d1321c367872f81c65eab8dcf48a52b74), resolves #753
cherry picking https://github.com/longdt219/nltk/commit/4fa2478cc24458147c0f92ac5c88874d0c7aafca; resolves #722
cherry picking https://github.com/longdt219/nltk/commit/592ba8788783bb195bdc06479ab90387cf52a0fe; cf #805
minor stylistic tweaks, resolves #805
add dependency evaluation module to parse package, cf #805
cherry-picking https://github.com/longdt219/nltk/commit/7ea05213f5c0a9dfc74b1de61cfab74d9764d983; resolves #788
Merge branch 'develop' of https://github.com/nltk/nltk into develop

Conflicts:
	nltk/internals.py