Add include_rts parameter to user_timeline().
Add include_rts parameter to user_timeline().

Closes #48

conversocial/tweepy,cinemapub/bright-response,zhenv5/tweepy,bconnelly/tweepy,nickmalleson/tweepy,tsablic/tweepy,nickmalleson/tweepy,kskk02/tweepy,markunsworth/tweepy,yared-bezum/tweepy,obskyr/tweepy,aleczadikian/tweepy,awangga/tweepy,nickmalleson/tweepy,damchilly/tweepy,cinemapub/bright-response,tweepy/tweepy,wjt/tweepy,markunsworth/tweepy,sa8/tweepy,sidewire/tweepy,vivek8943/tweepy,jperecharla/tweepy,thelostscientist/tweepy,elijah513/tweepy,ze-phyr-us/tweepy,vishnugonela/tweepy,techieshark/tweepy,xrg/tweepy,kylemanna/tweepy,arunxarun/tweepy,iamjakob/tweepy,ze-phyr-us/tweepy,xrg/tweepy,Choko256/tweepy,rudraksh125/tweepy,robbiewoods05/tweepy,LikeABird/tweepy,abhishekgahlot/tweepy,hackebrot/tweepy,svven/tweepy,atomicjets/tweepy,truekonrads/tweepy,cogniteev/tweepy,aganzha/tweepy,edsu/tweepy,kcompher/tweepy,alexhanna/tweepy,vikasgorur/tweepy,alexhanna/tweepy,tuxos/tweepy,abhishekgahlot/tweepy,nickmalleson/tweepy,IsaacHaze/tweepy,arpithparikh/tweepy,raymondethan/tweepy,takeshineshiro/tweepy,srimanthd/tweepy