[1.0.5] Feature update

+ Add a new log unit tests
* RowKey now contains milliseconds of timestamp
* Update AzureCloudTableLogger constructor to be only 1 constructor
(with optional arguments)
* AzureCloudTableLogger constructor now able to define IgnoreException
* AzureCloudTableLogger now takes in sender as optional input parameter
* Log methods now takes 'string' datatype for 'message' (instead of
object)