add explicit lib and rts/ license files

Ignore-this: 780fc0a9acac2939da3f26f199ef64b4

darcs-hash:20131021041421-1a7c6-b5ce5801bf7482a20dfddab9f3f894e8d837d110.gz
Use cpphs, because gcc-4.8.1's cpp has error.

Ignore-this: c4eda3e4cabfe4ec61288f9acc3916b4

darcs-hash:20130919151249-99646-b3c366b55b398d83eaf158b74db1330c4ec8db99.gz
Better NAIVEGC and new SAVING_MALLOC_HEAP flag.

Ignore-this: 5f19fd33aa1f239b3d91c4dc587c022f

darcs-hash:20130919151344-99646-6b9bcace2792bb440a9a6be27f294e055e1e15b1.gz
Merge remote-tracking branch 'origin/master' into arafura

Conflicts:
	rts/rts/gc_jgc.c <= Take arafura branch's.