fixed THeap constructor in gbase.h - invalid argument sequence
Merge branch 'master', remote-tracking branch 'upstream/master'
added directed graph
creating array of graphs
added authors and pulications files
added directed graph
Merge pull request #47 from mkarlovc/master

Added directed graph and minor changes on cmty detection algorithms
Merge branch 'master' of github.com:qminer/qminer
doc, intellisense