Export remotefile.h for plugins. Should have been exported all along.
Rename system-XXX.{h,cpp} files to use myth coding convention.
Add override checking to MythSystemPrivate inheritance.

This only works when compiling with with C++11 support, but when compiled on such
a system this will throw an error if the signature of the base class method changes
without the child class being updated.
Remove some unused members and initialise others in ScreenWizard. Silences some cppcheck warnings.
Silence a cppcheck warning about allocating m_gameTree before checking that it was deallocated.
Silence cppcheck warning about allocating m_browser before checking whether it was already allocated. False positive in that Create() should only be called once per instance of MythFlashPlayer but it doesn't hurt to code defensively against the possibility.
Remove redundant/unused assignments to chk from AudioInputOSS. Silences several cppcheck warnings
Initialise MythCoreContextPrivate::pluginmanager to NULL and add guards against leaks if SetPluginManager() is called twice
Rename pluginmanager to m_pluginmanager per coding standards
Apply the proper fix for a gcc unused variable warning, the existing fix just triggers another cppcheck warning instead.
Suppress warning about unused variable in Mythmusic's visualise.cpp
Coding standards cleanup of lcddevice.cpp/h and use initialisation list for member variables (cppcheck)
Use initialisation lists for MythEvent constructors. Cppcheck warning.
Move MythSystemPrivate out of public interface header.
Add some needed headers
Remove compat.h & signal.h from mythsystem.h

We don't want to include unnecessary headers in mythsystem.h.
This may break on some of the other builds, I'll fix as needed.
Add missing header include
Coding standards fixes and initialisation improvements for MythUIGuideGrid. Fixes some cppcheck warnings
Initialise member variables in ATSCEvent. Strictly speaking this isn't
necessary as they are initialised immediately after creation, but all
static analysis tools complain about this and it's safer in the long
term

Refs #5106
Use initialisation list for RawDataList (Nuppeldecoder). Cppcheck performance warning