Includes everything in 2.5.18-beta.0

Bug Fixes

• compiler: fix codegen for v-for component inside template 1b4a8a0, closes #9142
• ssr: fix ssr template publicPath generation f077ed1, closes #9145
• fix keyName checking for space and delete in IE11 (#9150) 0ed0aad, closes #9150 #9112
• transition-group: fix activeInstance regression 8a2dbf5, closes #9151
• types: correct scopedSlot types (#9131) 448ba65, closes #9131 #8946
• types: type support for advanced async components (#8438) dfaf9e2, closes #8438