doc: Merged and updated old docs for Function#methodize.
doc: Merged and updated old docs for Function#methodize.

ShefronYudy/prototype,loduis/prototype,Gargaj/prototype,fashionsun/prototype,Gargaj/prototype,ldf7801528/prototype,lamsieuquay/prototype,lamsieuquay/prototype,leafo/prototype,sdumitriu/prototype,Gargaj/prototype,leafo/prototype,baiyanghese/prototype,sstephenson/prototype,ShefronYudy/prototype,loduis/prototype,ldf7801528/prototype,Jiasm/prototype,erpframework/prototype,sdumitriu/prototype,ridixcr/prototype,ridixcr/prototype,Jiasm/prototype,fashionsun/prototype,ShefronYudy/prototype,292388900/prototype,erpframework/prototype,loduis/prototype,lamsieuquay/prototype,ldf7801528/prototype,sstephenson/prototype,fashionsun/prototype,ridixcr/prototype,baiyanghese/prototype,sstephenson/prototype,292388900/prototype,erpframework/prototype,sdumitriu/prototype,Jiasm/prototype,292388900/prototype