Adding in CSS for header buttons

references AamAadmiParty/india-standalone-drupal#77
Added custom pane with Contact Donate buttons in header

references AamAadmiParty/india-standalone-drupal#77
Corrected contact us button path

references AamAadmiParty/india-standalone-drupal#77
Merge pull request #91 from AamAadmiParty/sumeet/77-header-buttons-2

Sumeet/77 header buttons 2