V0.6 2013-03-22

• align with handlebarsjs 1.0.11
• 45ac3b6 fix #with bug when var is false
• 1a46c2c minor #with logic fix. update document
• fdc753b fix #each and section logic for 018-hb-withwith-006
• e6cc95a add FLAG_PARENT, detect template error when scan()
• 1980691 make new LCRun::val() method to normal path.val logic
• 110d24f {{#if path.var}} bug fixed
• d6ae2e6 fix {{#with path.val}} when input value is null
• 71cf074 fix for 020-hb-doteach testcase