Fix typo in readme
updated load call to preserve the onload.error callback.
changed handlebars AMD name to lower case; defaulted extension to .hbs
Merge remote-tracking branch 'remotes/rlgnak/preserve_onload_error'
Merge commit 'b9fb5b8a797b522e7fe9a297c1fcf798aabb4222': * changed handlebars AMD name to lower case; defaulted extension to .hbs
Merge remote-tracking branch 'remotes/contolini/master'

Conflicts:
	README.md
corrected docu following latest merges.