update templates etc
switch promises tip to relevant promises doc and drop the out of date page about integrating with third parties
add a short section on function expressions and dependencies to the expressions page.
initial docs for if, else, with, and each special sections
Merge pull request #119 from evs-chris/updates

Updates for un(der)documented and new features
Ractive now uses native promises
Create Using Ractive with Yeoman.md.hbs
Update Tips.md.hbs
add unless special section and note how else works within the each section
add a short section on updating partials after initial render
document ractive array methods pop, push, shift, splice, and unshift
Merge pull request #121 from evs-chris/updates

Document array methods, add unless and each else, and add a note about updating partials
Update Options.md.hbs

Change twoWay in the example to lowercase twoway
Merge pull request #122 from silentworks/patch-1

Update Options.md.hbs
Update Two-way binding.md.hbs

Updated to link to the correct two way in options
Merge pull request #123 from silentworks/master

Update Two-way binding.md.hbs
fix missing hb escape eating the end of the mustaches docs
add a section on aliasing to the mustache docs
add initial docs for static mustaches
docs for events: arguments, event object properties, multi-subscribe attribute, and ractive.on with an object