* pgadmin: use https homepage
* msn-pecan: move homepage to github
google code is now unavailable
* pidgin-latex: use https for homepage
* pidgin-opensteamworks: use github for homepage
google code is unavailable
* putty: use https for homepage
* ponylang: use https for homepage
* picolisp: use https for homepage
* phonon: use https for homepage
* pugixml: use https for homepage
* pioneer: use https for homepage
* packer: use https for homepage
* pokerth: usee https for homepage
* procps-ng: use https for homepage
* pycaml: use https for homepage
* proot: move homepage to .github.io
* pius: use https for homepage
* pdfread: use https for homepage
* postgresql: use https for homepage
* ponysay: move homepage to new site
* prometheus: use https for homepage
* powerdns: use https for homepage
* pm-utils: use https for homepage
* patchelf: move homepage to https
* tesseract: move homepage to github
* quodlibet: move homepage from google code
* jbrout: move homepage from google code
* eiskaltdcpp: move homepage to github
* nodejs: use https to homepage
* nix: use https for homepage
* pdf2djvu: move homepage from google code
* game-music-emu: move homepage from google code
* vacuum: move homepae from google code
* refactor and clean up the derivation composition
* add slim variation: the slim variations configure node without npm.
Building node with npm introduces a python runtime depndency through
gyp - slim variation makes sense for building small nodejs production
images
node.js 0.10 reaches end of LTS in a few days (see https://github.com/nodejs/LTS for details). Therefore I removed it and set 3 dependant packages to broken as they don't build anymore