Ansible-cmdb

- Added a -c / --columns option that allows users to specify the columns to show. Must be supported by template.
- Html_fancy template now has a kernel column. (by Rowin Andruscavage)
- Html_fancy template now has a timestamp column which displays when facts where gathered. (by Rowin Andruscavage)
- Bugfix: Search box in html_fancy template was not properly focused automatically.
- Version is now properly displayed with --version
- Development related: Refactoring of ansible-cmdb into a module and a thin commandline wrapper.

This is a feature release, which includes the following changes:
- The -i switch now supports reading dynamic inventory scripts.
- host_vars directory now supported (by Malcolm Mallardi)
- Support for multiple inventory sources as per https://docs.ansible.com/ansible/intro_dynamic_inventory.htmlusing-multiple-inventory-sources.
- Improved error handling prevents ansible-cmdb from stopping if it encounters non-critical errors (malformed host definitions, etc).
- Improved error reporting.
- html_fancy template column headers are now visually identifiable as being sortable.

This is a feature release which includes the following improvements:
- html_fancy overview page can now be viewed locally (through file:///) without needing to specify the `-p local_js=1` flag to it. It still fetches resources from the internet, so you still require an internet connection. If you do not want to fetch resources from the internet, use the `-p local_js=1` flag.
- A new Material design for the html_fancy template.

The following features have been added and bugs have been fixed:
- Support for host inventory patterns (e.g. foo[01:04].bar.com)
- Support for 'vars' and 'children' groups.
- Support passing a directory to the `-i` param, in which case all the files in
that directory are interpreted as one big hosts file.
- Support for the use of local jquery files instead of via a CDN. Allows you to
view the hosts overview in your browser using file://. See README.md for info
on how to enable it (hint: `ansible-cmdb -p local_js=1`).
- Add -f/--fact-caching flag for compatibility with fact_caching=jsonfile fact
dirs (Rowin Andruscavage).
- The search box in the html_fancy template is now automatically focussed.
- Show memory to one decimal to avoid "0g" in low-mem hosts.
- Templates can now receive parameters via the -p option.
- Strip ports from hostnames scanned from the host inventory file.
- Various fixes in the documentation.
- Fixes for Solaris output (memory and disk).

I would like to extend my gratitude to the following contributors:
- Sebastian Gumprich
- Rowin Andruscavage
- Cory Wagner
- Jeff Palmer
- Sven Schliesing

This is a maintenance release that fixes the following issues:
- Generated RPM now installs on operating systems with strict Yum (Fedora 22, Amazon AMI).
- The default templates (html_fancy, txt_table) no longer crash on missing information.
- Python3 compatibility. (by Sven Schliesing).
- Disk total and available columns have been deprecated in favour of adding the information to the Disk Usage columns. (by Sven Schliesing).
- No longer ignore disks smaller than 1Gb, but still ignore disks of total size 0.
- Minor fixes in the documentation (by Sebastian Gumprich, et al).
- Better error reporting.

This is a bugfix release:
- Fancy template: Don't fail if network interface information is not available.
- Fancy template: Don't show Disk usage bar for disks smaller than 1mb.