upload on [2013/09/08] 05:53pm
[2013/09/09] Fixed the bug

It seems to work now.
bug fix & added analysis

merge has a bug to wrongly identify the prime set.
[2013/09/14] added single context only feature
[2013/09/14] more bug fixes
added analysis feature
[2013/09/15] get the first analysis results
added network generator

It seems to have some bugs in the logic, as the random100.txt returns
different resultw with single vs aggregated results.
[2013/09/19] networkAlgorithm added

Be warned! the algorithm is wrong
dijikstra algorithm implemented ana added
[2013/09/19] Finished longest shortest path!
demerge code rewrite
Temporary: Got some bug, but I need to upload it.
[2013/09/22] added maximum cover and exact cover
found bug in demerge and fix it
Updated the merger and its tests
make better result by upgrading merge algorithm
added tests