allowInvalidNumbers option in parse which will turn invalid numbers like 8. into strings @brianr
fix memory 'leak' where the original text passed to parse() would be retained until the next call.
Merge remote-tracking branch 'upstream/master'
Revert "allowInvalidNumbers option in parse which will turn invalid numbers like 8. into strings @brianr"

This reverts commit 504b48a388d865d8e7325b9946482235a507480a.
Merge pull request #4 from rollbar/text_leak_fix

Text leak fix