Merge pull request !6042 from wangchangkai/master

Merge pull request !6060 from hanyang/master

Merge pull request !6045 from yihuaijie/master

Merge pull request !6050 from ling/arm32

Merge pull request !6024 from 张清华/master2

Merge pull request !6058 from liuchao/master

Merge pull request !5978 from liuwenhao/master

Merge pull request !6056 from zhaozhenlong/lite/issue/inline_remove

Merge pull request !5949 from yuximiao/gpu_timeline

Merge pull request !5989 from ougongchang/linux_support

Merge pull request !5836 from zhaozhenlong/lite/issue/reduce_int8_malloc

Merge pull request !6029 from zhaozhenlong/lite/issue/l2norm_multithread_trailing_axis

Merge pull request !6003 from yanghaoran/pathfinding

Remove reentrant function in signal handler;
Just close self in client when timeout during transaction;

Merge pull request !5947 from yuximiao/change_interface

Merge pull request !5943 from sunsuodong/space_to_batch_nd

Merge pull request !5857 from chenjianping/lite_dev2

Merge pull request !5995 from riemann_penn/Add_check_for_relugrad

Merge pull request !6044 from baiyangfan/mode_init

Merge pull request !5843 from 徐安越/master

Merge pull request !5910 from zhaozhenlong/lite/issue/transpose

Merge pull request !5850 from zhaozhenlong/lite/issue/strided_slice

Merge pull request !6028 from hewei/fix_codedex_0911

Merge pull request !5907 from 陶云浩/lite

Merge pull request !6035 from ling/bug

refactor reduce run: move calc out and split func

Merge pull request !5818 from ling/sr

Merge pull request !4950 from anthonyaje/monitor_fix

Merge pull request !5994 from sunsuodong/fix_reverse_seqence

Merge pull request !6004 from yepei6/mobilenetv2_del_commentt

Merge pull request !5996 from pengyongrong/concatAnyDimension

Merge pull request !6040 from mengyuanli/add_black_box

Merge pull request !6037 from zhoufeng/python-check

Merge pull request !6026 from suteng/master

Merge pull request !5966 from yuchaojie/quant