* Cherry picked commits from prev branch
* Added new keepers for querier functionalities
* Renaming
* Fixed gov errors and messages
* Added Querier to stake and app
* Update delegation keepers
* REST Queriers not working
* Fix marshalling error
* Querier tests working
* Pool and params working
* sdk.NewCoin for test handler
* Refactor and renaming
* Update LCD queries and added more tests for queriers
* use sdk.NewCoin
* Delegator summary query and tests
* Added more tests for keeper
* Update PENDING.md
* Update stake rest query
* Format and replaced panics for sdk.Error
* Refactor and addressed comments from Sunny and Aleks
* Fixed some of the errors produced by addr type change
* Fixed remaining errors
* Updated and fixed lite tests
* JSON Header and consistency on errors
* Increased cov for genesis
* Added comment for maxRetrieve param in keepers
* Comment on DelegationWithoutDec
* Bech32Validator Keepers
* Changed Bech validator
* Updated remaining tests and bech32 validator
* Addressed most of Rigel's comments
* Updated tests and types
* Make codec to be unexported from keeper
* Moved logic to query_utils and updated tests
* Fix linter err and PENDING
* Fix err
* Fix err
* Fixed tests
* Update PENDING description
* Update UpdateBondedValidatorsFull
* Update iterator
* defer iterator.Close()
* delete comment
* Address some of Aleks comments, need to fix tests
* export querier
* Fixed tests
* Address Rigel's comments
* More tests
* return error for GetDelegatorValidator
* Fixed conflicts
* Fix linter warnings
* Address @rigelrozanski comments
* Delete comments
* wire ––> codec
Federico Kunze
Rigel