DOC: Provide a better explanation of bounded int generation
DOC: Provide a better explanation of bounded int generation

Clarify that the internal generator is closed on [low, high-1] even though
the external interface is open [low, high)

closes #26

ahaldane/numpy,numpy/numpy,pizzathief/numpy,seberg/numpy,jorisvandenbossche/numpy,MSeifert04/numpy,seberg/numpy,MSeifert04/numpy,MSeifert04/numpy,jakirkham/numpy,jorisvandenbossche/numpy,rgommers/numpy,ahaldane/numpy,mhvk/numpy,WarrenWeckesser/numpy,jorisvandenbossche/numpy,charris/numpy,jakirkham/numpy,jorisvandenbossche/numpy,charris/numpy,abalkin/numpy,grlee77/numpy,simongibbons/numpy,pizzathief/numpy,endolith/numpy,anntzer/numpy,abalkin/numpy,rgommers/numpy,anntzer/numpy,simongibbons/numpy,grlee77/numpy,seberg/numpy,pbrod/numpy,madphysicist/numpy,endolith/numpy,MSeifert04/numpy,madphysicist/numpy,ahaldane/numpy,anntzer/numpy,seberg/numpy,MSeifert04/numpy,pbrod/numpy,grlee77/numpy,pizzathief/numpy,mhvk/numpy,endolith/numpy,ahaldane/numpy,mhvk/numpy,jorisvandenbossche/numpy,mhvk/numpy,mattip/numpy,pizzathief/numpy,pdebuyl/numpy,pdebuyl/numpy,pbrod/numpy,mattip/numpy,WarrenWeckesser/numpy,pbrod/numpy,jakirkham/numpy,simongibbons/numpy,madphysicist/numpy,mhvk/numpy,endolith/numpy,pdebuyl/numpy,WarrenWeckesser/numpy,WarrenWeckesser/numpy,madphysicist/numpy,numpy/numpy,mattip/numpy,simongibbons/numpy,jakirkham/numpy,charris/numpy,pizzathief/numpy,jakirkham/numpy,anntzer/numpy,abalkin/numpy,rgommers/numpy,numpy/numpy,pbrod/numpy,charris/numpy,simongibbons/numpy,grlee77/numpy,WarrenWeckesser/numpy,rgommers/numpy,mattip/numpy,pdebuyl/numpy,numpy/numpy,ahaldane/numpy,madphysicist/numpy,grlee77/numpy