Added new ZeOmega logo.
Added instamojo as silver sponsor.
Added agiliq as silver sponsor.
Take the list of partners from nodes instead of hard coding in
tempaltes.

The (index) node will have a "partners" property, listing names of all
partners separated by comma. Each partner will have a fragement with
name "partner-" + name. The template will go over each fragment and
renders it.
Made all sponsor rendering using the nodes.

No code changes are required to add a new sponsor.
fix
Added instructions for setting up a dev instance.
Integrated the new style.
Improve the readability of workshops/conference text.
updated Readme.
linked the easter eggs (closes #40)
Linked some sections #46