Merge pull request #32 from pelikanchik/alexg

Alexg
Merge pull request #33 from pelikanchik/alexg

Alexg
Minor bug fix, mainly for Chrome
z-index fix
(beta: descriptions of nodes in graph)
(Node details are implemented as proof-of-concept)
Edges labeling implemented (as proof-of-concept)
Edge labeling and node details can be shown to people without embarrassment
Merge pull request #39 from pelikanchik/bt

Bt
graph fixes
Merge pull request #41 from pelikanchik/master

update from master