Added alias for euro -> eur

less/glyphicons.less

@@ -33,7 +33,8 @@
 // Individual icons
 .glyphicon-asterisk               { &:before { content: "\2a"; } }
 .glyphicon-plus                   { &:before { content: "\2b"; } }
-.glyphicon-euro                   { &:before { content: "\20ac"; } }
+.glyphicon-euro,
+.glyphicon-eur                    { &:before { content: "\20ac"; } }
 .glyphicon-minus                  { &:before { content: "\2212"; } }
 .glyphicon-cloud                  { &:before { content: "\2601"; } }
 .glyphicon-envelope               { &:before { content: "\2709"; } }