WM: Fixed width base settings
WM: Avatars and dropdown icon fixes
WM: Project dropdown avatar spaces
WM: Topbar avatar top spacing; closes #974
WM: Increased default width in project share modal dropdowns, closes #953
Merge pull request #976 from onaio/974_fixed_width_avatar_icons

974 fixed width avatar icons
GM: Added XLS Report selectors to dataset show template
GM: Added xls-report upload functionality
GM/RR: Implemented XLS Template posting to j2x service
GM: Added xls report upload form
GM: Add metadata api endpoint with xls-report export url
GM: Added display of available xls reports
GM: [WIP] Downloading of XLS Reports from j2x
GM: Finished XLS report download implementation
GM: Fixed failing test
GM: xls report list is updated asyncly when new report is added
GM: Implemented xls-report deleting
GM: Added test for xls-template-upload
GM: Added GET xls-report route test
GM/RR: Added POST route tests for xls reports