MFH: r399799

www/codeigniter: update 2.2.4 -> 2.2.5

• Convert to USE_GITHUB as 2.2.5 was not available at original MASTER_SITES

PR: 203403
Approved by: maintainer timeout (21 days)
Approved by: portmgr (bdrewery)
Security: https://vuxml.FreeBSD.org/freebsd/95602550-76cf-11e5-a2a1-002590263bf5.html