CHANGES IN VERSION 1.7.1
------------------------
 o support GO enrichment analysis for organism celegans <2013-01-22, Fri> 
 o add compress parameter in buildGOmap <2013-01-16, Wed>
 o import ggtitle from ggplot2 <2012-09-07, Fri> 
 o update codes of plot functions accompaning with ggplot2 (version 0.9.2) <2012-09-06, Thu> 
 o bug fixed of buildGOmap due to the empty GO annotation query from biomaRt <2012-07-18, Wed>

Changes IN VERSION 1.5.0
------------------------
 o bump up version to 1.5.0 for BioC 2.11 devel
 o add URL in DESCRIPTION
 o update citation and add biocView GeneSetEnrichment <2012-05-09, Wed>
 o support zebrafish <2012-05-18, Mon>

 CHANGES IN VERSION 1.3.15
------------------------
 o add support to organsims other than human, mouse, and yeast. <2012-03-22, Thu>
 o add GFFparser.R, which provide function Gff2GeneTable to parse Gff files and
   build gene information table.<2012-03-22, Thu>
 o add function buildGOmap for building GO mapping files for unsurported organisms,
   which can be analyzed now. <2012-03-22, Thu>
 o add vignette explaining how to run GO analysis for unsupported organism. <2012-03-12, Thu>

CHANGES IN VERSION 1.3.14
------------------------
 o re-implement enrichGO by import enrich.internal in DOSE
   implement S3 methods for mapping IDs for GO analysis. <2012-03-18, Sun>
 o re-implement enrichKEGG by import enrich.internal in DOSE
   implement S3 methods for mapping IDs for KEGG analysis. <2012-03-19, Mon>
 o re-implement groupGOResult class by extended from enrichResult,
   and modified groupGO by using S3 methods designed for enrichGO. <2012-03-19,Mon>
 o bug fixed for importing setReadable<- instead of setReadable. <2012-03-20, Tue>
 o bug fixed of TERM2NAME.GO. <2012-03-21, Wed>

CHANGES IN VERSION 1.3.13
------------------------
 o import plot summary from stats4, for BiocGenerics (version 0.1.10)
   removed them <2012-03-03, Sat>

CHANGES IN VERSION 1.3.12
------------------------
 o fixed BibTeX database file .bib.
   month = , must be month = someMonth, or totally deleted,
   leave it blank will cause texi2dvi failed. <2012-03-01, Thu>

CHANGES IN VERSION 1.3.11
------------------------
 o update vignette. <2012-02-28, Tue>

CHANGES IN VERSION 1.3.10
------------------------
 o fixed warnings concerning documents of plot generics. <2012-02-27, Mon>
 o import summary generic from BiocGenerics instead of stats4. <2012-02-27, Mon>

CHANGES IN VERSION 1.3.9
------------------------
 o fixed build error in bioc repos <2012-02-26 Sun>

CHANGES IN VERSION 1.3.8
------------------------
 o add visualization section in vignette <2012-02-16 Thu>

CHANGES IN VERSION 1.3.7
------------------------
 o @exportMethod plot <2012-02-15 Wed>
 o fix bug when calling summary method from plot,
   for summary defined in base is S3 method,
   instead import summary generic from stats4 <2012-02-15 Wed>

CHANGES IN VERSION 1.3.6
------------------------
 o remove generic definition of show, summary and plot, add NAMESPACE import show
   from methods and plot from graphics. summary need not to import, for is defined
   in the base package. <2012-02-13 Mon>
 o rewrite vignette <2012-02-13 Mon>

CHANGES IN VERSION 1.3.5
------------------------
 o update plot codes accompany with new version of ggplot2(>=0.9.0) <2012-02-07 Tue>

CHANGES IN VERSION 1.3.4
------------------------
 o using apply instead of mdply to improve speed <2012-02-03 Fri>
 o add citation of clusterProfiler <2012-02-03 Fri>

CHANGES IN VERSION 1.3.3
------------------------
 o add showCategory parameter for plot functions <2011-01-11 Wed>

CHANGES IN VERSION 1.3.2
------------------------
 o add qvalueCutoff parameter. <2011-01-05 Thu>

CHANGES IN VERSION 1.3.1
------------------------
 o add plot.categoryNet for enrichGOResult. <2011-11-10 Thu>

CHANGES IN VERSION 1.1.22
------------------------
 o update vignette. <2011-07-23 Thu>

 CHANGES IN VERSION 1.1.21
------------------------
 o update roxygen docs. <2011-07-23 Sat>

CHANGES IN VERSION 1.1.20
------------------------
 o update roxygen docs. <2011-07-19 Wed>

CHANGES IN VERSION 1.1.19
------------------------
 o change to using roxygen for generating Rd file. <2011-07-19 Tue>

CHANGES IN VERSION 1.1.18
------------------------
 o clean up some codes. <2011-07-19 Tue>

CHANGES IN VERSION 1.1.17
------------------------
 o Remove dependence of GOstats and Category. <2011-07-18 Mon>

CHANGES IN VERSION 1.1.16
------------------------
 o Re-implement function enrichGO. <2011-07-18 Mon>
 o add parameter readable, for mapping gene IDs to gene names. <2011-07-18 Mon>

CHANGES IN VERSION 1.1.15
------------------------
 o Modified plot method of groupGOResult, with colour coded. <2011-06-15 Wed>