Merge branch 'master' of https://github.com/gihantharanga/visualizer.git

Conflicts:
	src/main/webapp/view_graph.jsp
Merge pull request #22 from gihantharanga/master

two files were added
Merge branch 'master' of
https://github.com/Karsha-Project-LSF/visualizer.git
updated with original
view graph page changes
indegree and outdegree completed..
Merge pull request #24 from tharindu99/master

indegree and outdegree completed
algorithm is updated
conflicts resolved