Added code to resolve occasional crash with empty strings

- [BUGFIX] Added code to resolve occasional crash with empty strings
- Updated podspec version

Signed-off-by: Darren Ehlers <me@darrenehlers.com>
Added dictionaryDecimalNumber functions

- Added dictionaryDecimalNumber functions
- Updated podspec version

Signed-off-by: Darren Ehlers <me@darrenehlers.com>