1.9
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* Update the description of package and manual of several functions.

1.8
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* Compatibility with igraph v1.0

* In KEGGSim.R, state that five functions (TCSSGetAncestors, TCSSCompute_ICA, GetOntology, GetGOParents, GetLatestCommonAncestor) are re-used from R package GOSemSim[1] authored by Guangchuang Yu. 

[1]G. Yu, F. Li, Y. Qin, X. Bo, Y. Wu, and S. Wang, "GOSemSim: an R package for measuring semantic similarity among GO terms and gene products", Bioinformatics, vol. 26, no. 7, pp. 976-978, Apr. 2010.
