fixes #992
Fix JS docs + few other things
adds test for #992
More fix
Fix more examples
Fix docs build
Fix docs build - bis
Fix operator + little fix in table
Fix typo
Allow configure to pass when protoc is not yet built

Review 632 by @tryneus
Ruby doesn't need parentheses for repl
Bump serializer version to 1.6

Closes #985
Review 629 by @jdoliner
Fetch handlebars by default

Closes #958
Review 624 by @mlucy
Merge branch 'next' into michel_984_js_docs
Split operators/string
match is not an operator
Compile re2 on osx with libc++

Closes #989
Review OTS by @coffeemug
merging next