Update mysql.py

added the 'alter_time' column to the table 'salt_returns'
This column is convenient for us filtering SQL statements in a given time period and help us determine whether a statement execution success on some minions.
Update mysql.py

modify ''alter_time' TIMESTAMP DEFAULT CURRENT_TIMESTAMP' to ''alter_time' TIMESTAMP DEFAULT CURRENT_TIMESTAMP,'
Update mysql.py

change ' to `
add saltstack module: memcached
add saltstack state: memcached
Update at.py
Create at.py
Update at.py
Update at.py
Merge pull request #9006 from linuxme/master

 add the 'alter_time' column to the table 'salt_returns'
Merge pull request #9014 from pyinx/master

add module and state for memcached
Modify footnotes
Modify footnotes
Modify footnotes
Modify footnotes
Merge pull request #9065 from coocla/master

Expansion at the module and increase at state module
Trivial typo fix (passwd->passed)
Merge pull request #9086 from gthb/patch-2

Trivial typo fix (passwd->passed)
Update network.py
Merge pull request #9114 from itnihao/master

Update network.py [New function] Add get and mod hostname in network module