Issue #2407955 by dernetzjaeger, darketaine, stefan.r, ChuChuNaKu, ironkiat, LewisNyman, Cottser, wellme, mgifford, emma.maria: Clean up unused images in the Seven theme

Issue #2503453 by mgifford, bobrov1989, rikki_iki, kattekrab, LewisNyman: Increase contrast on inline form error text

Issue #2498163 by Arla, jeni_dc, nathanlawson91, MrPaulDriver, LewisNyman: Legend overlap with radios/checkboxes inside fieldset/fieldgroup

Issue #1493324 by tim.plunkett, dmsmidt, mgifford, bleen18, davidhernandez, crasx, mparker17, stefan.r, YesCT, joelpittet, tstoeckler, larowlan, vijaycs85, swentel, rpayanm, Bojhan, LewisNyman, emma.maria, BarisW, njbarrett, rteijeiro, nod_, sun, joshtaylor, mrjmd, webchick, marcvangend, kattekrab, SKAUGHT, bowersox, andrewmacpherson, Manjit.Singh, RavindraSingh, Wim Leers, BLadwin, aspilicious, mortendk, mausolos, jessebeach, Gábor Hojtsy, anandps, falcon03, franz, andypost, rooby, rootwork, Cottser, Xano: Inline form errors for accessibility and UX

Issue #2470137 by tadityar, zaporylie, pec, LewisNyman, ry5n, Bojhan, yoroy: Style Seven's fieldset elements

Issue #2396483 by Karmen, balagan, SoumyaDas, saki007ster, lauriii, joginderpc: Add missing RTL rules to Seven theme CSS

Issue #2045473 by njbarrett, dcrocks, chippper, jjcarrion, lauriii, InternetDevels: Improve visibility of Seven's smallest font elements

Issue #2227121 by emma.maria, Vally79, DickJohnson, Jill L, frankfarm, rootwork, jamesquinton, Rajendar Reddy, krueschi, ericxb, seiplax, bluegriff: The "Default country" dropdown element overflows the installer container at certain widths

Issue #2274631 by joelpittet, mgifford, droplet, LewisNyman | hass: Fixed Form required marker "\204E" is broken in Google Chrome 35 / Internet Explorer 9.