Implementation of COPY_BACK in progress
Merging Wearwolf into copy_back branch
Debugging copy back implementation
Merge branch 'Wearwolf' into copy_back
Made git ignore .o, .d, *~ files
Copy back bug fixes
Merge branch 'Wearwolf' of https://github.com/nivdayan/EagleTree into copy_back

Conflicts:
	ssd_io_scheduler.cpp
OS keeping track of running events
Copy back integration, refactoring and bugfixes
Bugfixing in the copy back code
Introduced GC when no free pointer can be found.
Merge branch 'Wearwolf' of https://github.com/nivdayan/EagleTree into copy_back

Conflicts:
	.gitignore
	BlockManagers/bm_parent.cpp
Forgot to remove <<<<<<<< merge line in .gitignore
Removing debug line
Small stuff
Valgrind, fix: variable num_pages_written was uninitialized in dftl_parent
Added explicit copy constructor to ssd_event (with new ID generation)
Correct handling of killed events in remove_redundant_events
Copy back with memory error in the process of debugging
Merge branch 'Wearwolf' of https://github.com/nivdayan/EagleTree into copy_back

Conflicts:
	.gitignore
	BlockManagers/bm_parent.cpp
	run_test2.cpp