[svn r37643] stroke the historical notes, and streamlined various parts of execnet documentation, added some api references.
[svn r37643] stroke the historical notes, and streamlined
various parts of execnet documentation,
added some api references.

--HG--
branch : trunk

Magicjarvis/py,rmfitzpatrick/pytest,vodik/pytest,lukas-bednar/pytest,Carreau/pytest,rouge8/pytest,JonathonSonesen/pytest,userzimmermann/pytest,abusalimov/pytest,Haibo-Wang-ORG/pytest,bubenkoff/pytest,ericdill/pytest,gabrielcnr/pytest,Bjwebb/pytest,pelme/pytest,chiller/pytest,pfctdayelise/pytest,ojake/pytest,nicoddemus/repo-test,Bachmann1234/pytest,Haibo-Wang-ORG/pytest,hpk42/pytest,nicoddemus/pytest,markshao/pytest,bukzor/pytest,hackebrot/pytest,jb098/pytest,inirudebwoy/pytest,bubenkoff/pytest,codewarrior0/pytest,pytest-dev/pytest,tomviner/pytest,pelme/pytest,gabrielcnr/pytest,ghostsquad/pytest,flub/pytest,omarkohl/pytest,ropez/pytest,ojake/pytest,doordash/pytest,icemac/pytest,untitaker/pytest,oleg-alexandrov/pytest,tgoodlet/pytest,abusalimov/pytest,Carreau/pytest,mhils/pytest,hpk42/pytest,ddboline/pytest,takluyver/pytest,vmalloc/dessert,chillbear/pytest,ericdill/pytest,MengJueM/pytest,MengJueM/pytest,oleg-alexandrov/pytest,icemac/pytest,txomon/pytest,Akasurde/pytest,codewarrior0/pytest,mdboom/pytest,ionelmc/pytest,doordash/pytest,skylarjhdownes/pytest,RonnyPfannschmidt/pytest,inirudebwoy/pytest,mbirtwell/pytest,chiller/pytest,untitaker/pytest,davidszotten/pytest,takluyver/pytest,jb098/pytest,ghostsquad/pytest,pytest-dev/py,eli-b/pytest,rouge8/pytest,nicoddemus/pytest,alfredodeza/pytest,userzimmermann/pytest,lukas-bednar/pytest,tareqalayan/pytest,The-Compiler/pytest,wfxiang08/pytest,hunse/pytest,MichaelAquilina/pytest,tomviner/pytest,etataurov/pytest,Bachmann1234/pytest,vodik/pytest,mbirtwell/pytest,chillbear/pytest,The-Compiler/pytest,hunse/pytest,nicoddemus/repo-test,mdboom/pytest,JonathonSonesen/pytest,jaraco/pytest,wfxiang08/pytest,bukzor/pytest,malinoff/pytest,ionelmc/pytest,omarkohl/pytest,Bjwebb/pytest,ropez/pytest,mhils/pytest