ME/RR: signing in with wrong credentials returns reasonable error message, closes #261
ME/RR: hide login error 'p' tag when credentials are correct
Merge pull request #262 from onaio/261-invalid-login-page

261 invalid login page
WM: Added normalize.css, consistent cross-browser rendering
WM: Profile page sidebar and table info edit
WM: Table data edit, added dataset dropdown menus
WM: Increased body bottom margin
WM: Dataset table first column width reduction
WM: Header dropdown border-fix
WM: Profile styling edits and border lines
WM: Sidenav container fixes
WM: Table filter boxes alignment
WM: Organization links, main container align
WM: Add-form buttons link styling
WM: Initial header, normalize.css edits for members page
WM: Content, headings, table layout for members page