274 contrib dependencies for life science applications: biodeps

This PR does a number of things:
1) adds a Boost version fixes a download bug for it identified in #304
2) introduces `biodeps` for goolf/1.4.10 & ictce/5.3.0
3) Provides an example with Mothur, whereby deps are collapsed within biodeps (-bare style)
4) Provides an example with TopHat, to demo how Boost/SAMtools compatibility is handled (biodeps-extended)
5) Add Perl-5.16.3-ictce-5.3.0* easyconfigs needed for certain bio* apps