Closes Pull Requests unchanged in 2018

We are closing stale Pull Requests to make the list more manageable.

Please re-open any Pull Request that has been closed in error.

Closes apache#608
Closes apache#639
Closes apache#640
Closes apache#648
Closes apache#662
Closes apache#668
Closes apache#692
Closes apache#705
Closes apache#724
Closes apache#728
Closes apache#730
Closes apache#753
Closes apache#803
Closes apache#854
Closes apache#922
Closes apache#986
Closes apache#992
Closes apache#1019
Closes apache#1040
Closes apache#1041
Closes apache#1043
Closes apache#1046
Closes apache#1051
Closes apache#1078
Closes apache#1146
Closes apache#1164
Closes apache#1165
Closes apache#1178
Closes apache#1213
Closes apache#1225
Closes apache#1258
Closes apache#1259
Closes apache#1268
Closes apache#1272
Closes apache#1277
Closes apache#1278
Closes apache#1288
Closes apache#1296
Closes apache#1328
Closes apache#1342
Closes apache#1353
Closes apache#1370
Closes apache#1376
Closes apache#1391
Closes apache#1395
Closes apache#1399
Closes apache#1406
Closes apache#1410
Closes apache#1422
Closes apache#1427
Closes apache#1443
Closes apache#1462
Closes apache#1468
Closes apache#1483
Closes apache#1506
Closes apache#1509
Closes apache#1515
Closes apache#1520
Closes apache#1521
Closes apache#1525
Closes apache#1527
Closes apache#1544
Closes apache#1550
Closes apache#1566
Closes apache#1569
Closes apache#1570
Closes apache#1575
Closes apache#1580
Closes apache#1584
Closes apache#1591
Closes apache#1600
Closes apache#1611
Closes apache#1613
Closes apache#1639
Closes apache#1703
Closes apache#1711
Closes apache#1719
Closes apache#1737
Closes apache#1760
Closes apache#1767
Closes apache#1768
Closes apache#1785
Closes apache#1799
Closes apache#1822
Closes apache#1824
Closes apache#1844
Closes apache#1874
Closes apache#1918
Closes apache#1928
Closes apache#1937
Closes apache#1942
Closes apache#1951
Closes apache#1957
Closes apache#1963
Closes apache#1964
Closes apache#1965
Closes apache#1967
Closes apache#1968
Closes apache#1971
Closes apache#1985
Closes apache#1986
Closes apache#1998
Closes apache#2031
Closes apache#2032
Closes apache#2071
Closes apache#2076
Closes apache#2108
Closes apache#2119
Closes apache#2128
Closes apache#2142
Closes apache#2174
Closes apache#2206
Closes apache#2297
Closes apache#2322
Closes apache#2332
Closes apache#2341
Closes apache#2377
Closes apache#2414
Closes apache#2469