DOC: Display real license on license page
DOC: Display real license on license page

Changes license.html to include LICENSE.txt, the real license file.
Was showing an out-of-date copy.

rgommers/numpy,endolith/numpy,madphysicist/numpy,simongibbons/numpy,jakirkham/numpy,mattip/numpy,numpy/numpy,pdebuyl/numpy,pbrod/numpy,pdebuyl/numpy,rgommers/numpy,simongibbons/numpy,simongibbons/numpy,jakirkham/numpy,mattip/numpy,pbrod/numpy,jakirkham/numpy,rgommers/numpy,charris/numpy,grlee77/numpy,seberg/numpy,simongibbons/numpy,anntzer/numpy,pbrod/numpy,madphysicist/numpy,numpy/numpy,anntzer/numpy,simongibbons/numpy,seberg/numpy,anntzer/numpy,jakirkham/numpy,charris/numpy,pbrod/numpy,mhvk/numpy,seberg/numpy,rgommers/numpy,endolith/numpy,grlee77/numpy,numpy/numpy,mhvk/numpy,mhvk/numpy,mhvk/numpy,pdebuyl/numpy,grlee77/numpy,jakirkham/numpy,pdebuyl/numpy,mhvk/numpy,numpy/numpy,madphysicist/numpy,madphysicist/numpy,seberg/numpy,madphysicist/numpy,endolith/numpy,charris/numpy,mattip/numpy,grlee77/numpy,pbrod/numpy,grlee77/numpy,anntzer/numpy,endolith/numpy,charris/numpy,mattip/numpy