[BioC] Failed to obtain KEGG organism code

[Nianhua Li]

Dear Tae-Hoon,

Thanks for the bug report. KEGG changed their FTP site structure on March 31. I
have updated AnnBuilder. The lastest version is 1.13.23 which is available at
svn repository now. You can get it via biocLite tomorrow. 

thanks

nianhua