From: @jiang-shuqiang
Reviewed-by: @wenkai_dist,@tangjr14
Signed-off-by: @tangjr14

1. delete the unused code, catch unknown error is unused in explain_parser.py
2. fix bug the lastest file size is unused
3. rename some variables and fix some spelling error

From: @ouwenchang
Reviewed-by: 
Signed-off-by:

Support to stop the loader that is currently loading data when add a new loader to cache by get_job method
Add the UT usecase to the stop mechanism

From: @luopengting
Reviewed-by: @wenkai_dist,@wangyue01
Signed-off-by: @wangyue01

If the values for batch_size is 'choice: [1, 2, True]', it will raise
validation exception.

Additionally, use 'type(value) is int' will not pass pylint. so use
'isinstance(x, bool) or not isinstance(x, int)' to filter invalid
value(s).

From: @jiang-shuqiang
Reviewed-by: @wenkai_dist
Signed-off-by:

add "1", "0" for --enable-debugger
add default node for all kind of watch conditions

Add pre-checking about the param type in choice. If user use batch_size:
[2, 4, ff] in optimizer config file, it will raise an Exception to tell
that it must be integer.

From: @jiang-shuqiang
Reviewed-by: 
Signed-off-by:

fix create recommend watchpoints failed problems

For example: convert error code from 7 to 111, then to ["nan", "inf", "no_prev_tensor"]
convert error code from 2 to 010, then to ["inf"]

delete old version conditions and old condition api
fix condition collection orders
fix tests

From: @jiang-shuqiang
Reviewed-by: @wenkai_dist,@wangyue01
Signed-off-by: @wangyue01

From: @luopengting
Reviewed-by: @ouwenchang,@wenkai_dist
Signed-off-by: @wenkai_dist

add param keys check
add check_param num and support_param check

From: @liuchongming74
Reviewed-by: 
Signed-off-by:

auto choose nodes when create watchpoints
add actual_value when hit watchpoints
add error_code when to show the Nan and Inf error

From: @ouwenchang
Reviewed-by: @scukzz,@wenkai_dist
Signed-off-by:

When CRC error occurs, it is generally caused by incomplete data in the file, so error information should be given to prompt the user.

From: @ngtony
Reviewed-by: 
Signed-off-by:

bugfix and add pillow to requirements.txt

modify summary format

bugfix

use sample_id in summary

fix CI problem

url encode '/' as well

fix ut

fix ut

fix ut

fix uncertainty enable checking

fix review comment

enhance exception raising

enhance comment

From: @luopengting
Reviewed-by: @ouwenchang,@wenkai_dist
Signed-off-by: @wenkai_dist

From: @jiang-shuqiang
Reviewed-by: 
Signed-off-by:

add this api to help ui asking user whether to set recommended watch points.

From: @yelihua
Reviewed-by: @ouwenchang,@wangyue01
Signed-off-by: @wangyue01

From: @luopengting
Reviewed-by: @ouwenchang,@wenkai_dist
Signed-off-by: @wenkai_dist

Merge pull request !728 from maning202007/ut_debugger

Merge pull request !816 from TonyNG/master

Merge pull request !831 from 张毅辉/zyh_profiler_restful