beast cleanup and tidying:

* Replace custom types with C++11 <cstdint> types
* Fix sqlite integer intos and uses
* Fix String implicit integer constructors
* Escape the enclosing namespace in sqdb
* Replace contract checks with assert
* Make many header files compile independently
* Remove the dependence on beast_core.h in many places
* Remove unused or obsolete classes and functions
* Remove unused or obsolete macros
* Remove unused network functions and files
* Remove unused or obsolete classes:
  - ChildProcess
  - HighResolutionTimer
  - InterProcessLock
  - Throw
  - TrackedMutex
  - UntrackedMutex
  - XmlDocument
  - XmlElement

beast/net/tests/IPEndpoint.test.cpp

@@ -36,7 +36,7 @@ namespace IP {
 class IPEndpoint_test : public unit_test::suite
 {
 public:
-    void shouldParseV4 (std::string const& s, uint32 value)
+    void shouldParseV4 (std::string const& s, std::uint32_t value)
     {
         std::pair <AddressV4, bool> const result (
             AddressV4::from_string (s));