Added configuration option HPX_THREAD_MAINTAIN_FULLBACKTRACE_ON_SUSPENSION which will store the resolved backtrace at thread suspension (instead just storing the stack frame addresses)
Adding better lco-description to spinlock
Making sure lock-bit is cleared when copying gid_type
Cosmetics
Fixing problem in gva_key_type::operator==(), clean up code
Making sure incref is never called with a locked gid_type
Adding more debug info (will be reverted later)
Merge branch 'fixing_1021' of github.com:STEllAR-GROUP/hpx into fixing_1021