prepare release 3.4.1 (optimizely#358) 

prepare for 3.4.0 release (optimizely#355) 

Update CHANGELOG for patching http client. (optimizely#350) 

Update CHANGELOG for patching http client. (optimizely#350) 

release off of master (optimizely#347) 

(chore): prepare for 3.3.2 release (optimizely#344) * prepare for 3.3.2 release * add pr to release comment

(chore): chrerry pick changes to 3.3.x. (optimizely#342) * (fix): use a ParserSupplier instead of java.util.Supplier to enable work on older versions of Android. (optimizely#340) * use a ParserSupplier to enable work on older versions of Android. * remove the generics * update for new release for android support (optimizely#341)

Update changelog for 3.3.0 release. (optimizely#339) 

Update changelog for 3.2.1. (optimizely#332) 

Update changelog for 3.4.0-beta release. (optimizely#326)