Styles for home page of the section tool to address usability issues found during testing.
Added icons for removing and adding users to a section.
Added tooltips to the icons on the section homepage
Merge branch 'develop' into feature/sections_css_adjustments

Conflicts: (Resolved)
	add_people/templates/add_people/section_list.html
	add_people/templates/add_people/sis_enrollment_sections.html
Improve readability of logic that checks if there is an enrollment_count on section - use truth value testing instead of slugify.
Merge pull request #84 from Harvard-University-iCommons/feature/sections_css_adjustments

Feature/sections css adjustments