Update ChangeLog for 3.4.0.
Update ChangeLog for 3.4.0.

TeamExodus/external_jemalloc,AndroidExternal/jemalloc,geekboxzone/lollipop_external_jemalloc,lilothar/jemalloc,lvfeng1130/jemalloc,shekkbuilder/jemalloc,dxq-git/jemalloc,CyanogenMod/android_external_jemalloc,tempbottle/jemalloc,wespelee/jemalloc,CMRemix/android_external_jemalloc,kmiku7/jemalloc,Dmitry-Me/jemalloc,ahmetmircik/jemalloc,wespelee/jemalloc,sudosurootdev/external_jemalloc,lvfeng1130/jemalloc,Dmitry-Me/jemalloc,yy-nm/jemalloc,Snaipe/jemalloc,CMRemix/android_external_jemalloc,ahmetmircik/jemalloc,TeamExodus/external_jemalloc,wfxiang08/jemalloc,cpeterso/jemalloc,android-ia/platform_external_jemalloc,awreece/jemalloc,geekboxzone/mmallow_external_jemalloc,flyfeifan/jemalloc,CyanogenMod/android_external_jemalloc,tempbottle/jemalloc,awreece/jemalloc,xin3liang/platform_external_jemalloc,sudosurootdev/external_jemalloc,garoose/jemalloc,shekkbuilder/jemalloc,lilothar/jemalloc,tempbottle/jemalloc,wfxiang08/jemalloc,ahmetmircik/jemalloc,android-ia/platform_external_jemalloc,dxq-git/jemalloc,8l/jemalloc,Snaipe/jemalloc,wqfish/jemalloc,android-ia/platform_external_jemalloc,AndroidExternal/jemalloc,geekboxzone/mmallow_external_jemalloc,VRToxin/android_external_jemalloc,wqfish/jemalloc,TeamExodus/external_jemalloc,CyanogenMod/android_external_jemalloc,cpeterso/jemalloc,geekboxzone/lollipop_external_jemalloc,yy-nm/jemalloc,leebaok/jemalloc-4.2.1-readcode,wfxiang08/jemalloc,geekboxzone/mmallow_external_jemalloc,xin3liang/platform_external_jemalloc,awreece/jemalloc,leebaok/jemalloc-4.2.1-readcode,flyfeifan/jemalloc,leebaok/jemalloc-4.2.1-readcode,yy-nm/jemalloc,sudosurootdev/external_jemalloc,geekboxzone/mmallow_external_jemalloc,flyfeifan/jemalloc,jemalloc/jemalloc-cmake,leebaok/jemalloc-4.2.1-readcode,CMRemix/android_external_jemalloc,glandium/jemalloc,android-ia/platform_external_jemalloc,jemalloc/jemalloc-cmake,wfxiang08/jemalloc,lvfeng1130/jemalloc,VRToxin/android_external_jemalloc,shekkbuilder/jemalloc,xin3liang/platform_external_jemalloc,vashstorm/jemalloc,vashstorm/jemalloc,8l/jemalloc,wespelee/jemalloc,dxq-git/jemalloc,AndroidExternal/jemalloc,sudosurootdev/external_jemalloc,AndroidExternal/jemalloc,8l/jemalloc,glandium/jemalloc,TeamExodus/external_jemalloc,ahmetmircik/jemalloc,glandium/jemalloc,cpeterso/jemalloc,glandium/jemalloc,VRToxin/android_external_jemalloc,wqfish/jemalloc,cpeterso/jemalloc,kmiku7/jemalloc,xin3liang/platform_external_jemalloc,dxq-git/jemalloc,kmiku7/jemalloc,Dmitry-Me/jemalloc,Snaipe/jemalloc,lilothar/jemalloc,jemalloc/jemalloc-cmake,flyfeifan/jemalloc,Snaipe/jemalloc,8l/jemalloc,garoose/jemalloc,Dmitry-Me/jemalloc,VRToxin/android_external_jemalloc,tempbottle/jemalloc,awreece/jemalloc,jemalloc/jemalloc-cmake,kmiku7/jemalloc,yy-nm/jemalloc,shekkbuilder/jemalloc,geekboxzone/lollipop_external_jemalloc,wespelee/jemalloc,vashstorm/jemalloc,lilothar/jemalloc,vashstorm/jemalloc,wqfish/jemalloc,garoose/jemalloc,wqfish/jemalloc,CyanogenMod/android_external_jemalloc,geekboxzone/lollipop_external_jemalloc,lvfeng1130/jemalloc,CMRemix/android_external_jemalloc,garoose/jemalloc