Merge pull request #18 from cnschwarz/master

change JAR_URL to support https

General meta fixes

Merge pull request #17 from kwaping/fixes

fix: correct format for jar args by removing "=" between key and value

Merge pull request #11 from Deadlus/patch-1

Merge pull request #15 from rgarrigue/patch-1

Update selenium

[arguments]: specify args to be of type 'dict'

use selenium 3.8.1

use 3.6.0 default

Merge pull request #8 from manoj9788/patch-1

update selenium 3.4.0

use 3.3.1

s/centos/EL for enterprise linux