+ Support v-once
+ Generate @templateId on the root element of each component
+ Add binding-expression attribute on recycle-list
+ Fix the compile result of v-else-if and v-else
* feat($compiler): support to generate @render function for weex recycle-list
Compile the template twice with different options for weex platform if
the “recyclable” flag is passed. Generate both normal render function
and “@render” function for recycle-list.
Adjust function names and arguments in recycle-list compiler.
* test(weex): add test cases for <recycle-list>
Compile the *.vue file into js code, then run it in Weex context, and
compare the generate virtual dom.
It’s a black-box testing for `weex-template-compiler`,
`weex-styler`,`weex-vue-framework` and `weex-js-runtime`.