fix source_urls in netCDF easyconfigs

fix source_urls in netCDF-C++ and netCDF-Fortran easyconfigs

{tools}[dummy] GC3Pie 2.4.0 (REVIEW)

remove exts_filter definition from Python 3.4.3 easyconfig, as it can cause problems

{bio}[goolf-1.4.10] Seaborn 0.6.0 (Review) 

Dump tests

{lib}[intel/2015a] gensim 0.11.1-1 (REVIEW)

Add snappy support and refer Hadoop to the snappy library.

rename R bundles so they don't conflict on each other

{chem}[intel/2015a] CP2K 20130228 (REVIEW)

{bio}[dummy-dummy] cramtools 2.0 (Review)

Add comment explaining commit id.

- replaced tabs
- removed hard coding in  'modloadmsg'
- 'modloadmsg' now declared with single qoutes

release)

fix bioconductor extension versions in R 3.1.3 easyconfigs

This depends on a forthcoming easyblock update to support 'extra_native_libs'
configuration setting in the Hadoop EasyBlock.

{tools}[dummy] GC3Pie 2.3