add missing logsumexp
add debian package info
Added base_version 0.7.8
scipy just moved the logsumexp function from scipy.maxentropy -> scipy.misc
Merge branch 'issuu-master' into issuu-deb

Conflicts:
	gensim/models/ldamodel.py
Trac #5845: Bump gensim version
Merge remote-tracking branch 'origin/issuu-deb' into issuu-master