Implement svcBreak

GPU/DefaultAttributes: Let the attribute data from the loaders overwrite the default attribs.

GPU/DefaultAttributes: Let the attribute data from the loaders overwrite the default attributes, if set.

closes #735

Delete unused hle/coprocessor.cpp

APT/FS: Remove asserts that were causing false positives in games

Common: Remove async logging

Update README.md, removing the old Roadmap link and adding the TODO list

Closes #759

dyncom: Add ARMv6K NOP and hint instructions to the interpreter.

dyncom: Minor cleanup.

Core/ResourceLimits: Implemented the basic structure of ResourceLimits.

Windows build fixes

Implemented svcs GetResourceLimit, GetResourceLimitCurrentValues and GetResourceLimitLimitValues.

Note that the resource limits do not currently keep track of used objects, since we have no way to distinguish between an object created by the application, and an object created by some HLE module once we're inside Kernel::T::Create.

Memory: Use a table based lookup scheme to read from memory regions

memory.cpp/h contains definitions related to acessing memory and
configuring the address space
mem_map.cpp/h contains higher-level definitions related to configuring
the address space accoording to the kernel and allocating memory.

thread: Fix a conditional check in Reschedule

Continue the axing of common

This is necessary, as hint instructions will be recognized as MSR, which is pretty bad.

These are already defined in arm_dyncom_interpreter_dec.cpp.

These can simply be const vars.

Qt: Shutdown emulation session only if EmuThread exists.

dyncom: Fix decoding of BKPT's immediate

Install a .desktop file to make citra-qt launchable from DE menus