use resetLocalAttrs instead of resetAllAttrs in macro to fix macro expansion failing when using pattern matching anonymous functions inside the expression. A similar problem is described here: groups.google.com/forum/#!topic/scala-user/ssd-vKm_4Dg

Note that we still need resetAllAttrs for the workaround to identify variables that can be pulled out of the Signal expression (inside the transformer)
Updated manual.tex

- fixed typos
- fixed code examples
Updated manual.tex

- fixed "Map Events" example (added string interpolator `s`)
Merge branch 'master' of https://github.com/guidosalva/REScala