edit release notes per remarks by @fgeorgatos in #245
fix download URL for R

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
also mention last minute included PR #251
Merge pull request #251 from fgeorgatos/bugfix_R_download_URL

fix download URL for R
Merge branch 'v1.4.0.x' of github.com:hpcugent/easybuild-easyconfigs into v1.4.0.x
Merge pull request #249 from boegel/v1.4.0.x

edit release notes per remarks by @fgeorgatos in #245
bump version to v1.4.0.0
correct version mentioned in release notes
Merge branch 'contrib_FFTW_v2.1.5_only' of github.com:fgeorgatos/easybuild-easyconfigs into contrib_FFTW_v2.1.5_only
transform FFTW 2.1.5 easyconfigs into fat builds (both float and double libs/header files)
Merge pull request #16 from boegel/contrib_FFTW_v2.1.5_only

transform FFTW 2.1.5 easyconfigs into fat builds (both float and double libs/header files)