First commit, added suffix tree related classes and services.
Modified suffixtree to deal with host split problem. Modified StringServices methods
Milestone, services test, will correct suffix link next
Milestone, services tests passed, suffix links are added to non-general suffix tree
Corrected suffix link creation. All test passed
Added findLowestCommonAncestor method
Added findAllLeaves method and findSubstringIndex method
Added kMismatch method. Modified findNode method in suffixTree. All tested. A milestone
Added longestCommonSubsequence method and traceback methods
Added stringEditDistance method and tranceback methods, all tested
Merge branch 'master' of https://github.com/xykid1986/suffixtree