Merge pull request #67 from SupunS/master

User login implemented
10_24_2014_4_14PM
10_24_2014_4_17AM
10_24_2014_4_14PM
10_24_2014_4_17AM
10_24_2014_4_30AM
Delete RunLogisticRegression.java
10_24_2014_4_35PM
add logistic regression class
log regression deleted
logistic regression class added
Merge pull request #68 from lochana/master

10_24_2014_4_44PM
error fixed
Merge pull request #69 from lochana/master

error fixed