Develop

* Merge pull request #74 from FenrirUnbound/bugfix/memcache 
* Implemented incremental updates to memcache 
* Data validation for memcache saves 
* Test case for incrementally updating memcache data 
* Check for valid memcache data entries 
* Migrated spread-specific constants to own class 
* Merge pull request #73 from FenrirUnbound/feature/split-constants 
* Migrated spread-specific constants to own class 
* Utilize unicode encoding 
* Streamlined how to convert parameter types 
* Replaced memcache add with set 
* Merge pull request #69 from FenrirUnbound/bugfix/object 
* Proper call of unicode conversion function 
* Merge pull request #68 from FenrirUnbound/bugfix/data-conversion 
* Appropriate check for dictionary keys 
* Parameter converion is all done by function 
* Merge pull request #67 from FenrirUnbound/bugfix/default-values 
* Attribute check for accessing dictionary values