Closing stale pull requests.

Closes #13103
Closes #8320
Closes #7871
Closes #7461
Closes #9159
Closes #9150
Closes #9200
Closes #9089
Closes #8022
Closes #6767
Closes #8505
Closes #9457
Closes #9397
Closes #8563
Closes #10062
Closes #9944
Closes #10137
Closes #10148
Closes #9057
Closes #10163
Closes #8023
Closes #10302
Closes #8979
Closes #8981
Closes #10258
Closes #7345
Closes #9183
Closes #10087
Closes #10292
Closes #10254
Closes #10374
Closes #8915
Closes #10128
Closes #10666
Closes #8533
Closes #10625
Closes #8013
Closes #8427
Closes #7753
Closes #10116
Closes #11005
Closes #10797
Closes #11026
Closes #11009
Closes #10117
Closes #11382
Closes #9483
Closes #10566
Closes #10753
Closes #11386
Closes #9097
Closes #11245
Closes #11257
Closes #11045
Closes #10144
Closes #11066
Closes #8610
Closes #10634
Closes #11224
Closes #11212
Closes #11244
Closes #10326
Closes #13524