Cleanup:
* Move QUALITY_ONE to Quality.h
* Move functional files up one level
* Remove core.h
* Merge routines into Config.cpp
* Rename Section to IniFileSections
* Rename IniFileSections routines
Add BasicConfig simplified config interface
Use transform_iterator in http::headers
Add base64 conversions and tests
Fix beast::http::headers move members
Cleanups:
* Remove obsolete string formatting function
* Remove unused ADDRESS macro
* Re-scope functions
Inject JobQueue in NetworkOPs
Set version to 0.26.4-alpha
Refactor STAmount:
* Remove unused functions
* Remove unused constructor
* Use delegating constructors
* Mark some observers deprecated
* Clean up declaration parameter names
* Add checked and unchecked constructors
* De-inline unnecessary inlined functions
* Reorder and regroup members into sections
* Move globals from the unity file to the .cpp
* Change some member functions to be free functions
* Put implementation in one .cpp and the test in another .cpp

Remove unused STAmount constructor and delegate two others No change in functionality.
Add account_lines paging
Add account_offers paging (RIPD-344)