Edit jiracommon.py to read config.ini from directory local/config.ini instead of bin/config.ini
This commit is to take into account that jira endpoints can be hosted on urls with uri paths. eg:
https://jira.example.com/jira

Moved the config.ini.sample from bin to default.
Added the key pathname to config.ini.sample
Adjusted jira_rest.py jira_soap.py and jira_xml.py to take uri pathname into account.
Edit Readme to reflect config.ini location changes