Revert "no need for liferay overrride css" - removing overrides changes style, better keep that

This reverts commit f77df7bb.

src/main/sass/_overrides.sass

+// Restore background for frontend editor
+html.dialog-iframe-root-node
+	background: #fff
+	height: auto
+
+body.html-editor
+	background: #fff
+	padding: 1em
+
+.portlet,
+.portlet-body
+	margin-bottom: $grid
+
+.portlet-content,
+.portlet-minimized,
+.portlet-content-container
+	padding: 0
+
+.portlet-rss
+	.feed
+		padding-left: 0 !important
+
+	.feed-entries
+		font-size: $font-size !important // Override inline style
+
+// Base style overrides
+.aui
+	body
+		background: none
+		padding: 0
+
+	dd,
+	dt
+		line-height: inherit
+
+	dd
+		margin-left: 0
+
+		+ dt
+			margin-top: ($grid / 2)
+
+	form
+		margin: 0
+
+	li
+		line-height: inherit
+
+	button,
+	input,
+	select,
+	textarea
+		font: #{$font-size} / #{$line-height} $font-family-text
+		margin: 0
+
+	input[type=search]
+		box-sizing: border-box
+
+	select
+		width: auto
+
+	.breadcrumb
+		background: none
+		margin: 0
+		padding: 0
+
+		.divider
+			display: none
+
+	// Image carousel and modal slider (from Bootstrap)
+	.carousel-inner > .item > img,
+	.carousel-inner > .item > a > img
+		width: 100%
+
+	.carousel-control
+		border: 0
+		border-radius: $br
+		line-height: 27px
+		top: 50%
+
+		+hover
+			border: 0
+
+	.carousel-caption
+		text-shadow: none
+
+	.modal
+		+respond-to(small)
+			margin-left: 0 !important
+			width: auto !important
+
+	.modal-header .close
+		color: inherit
+		height: auto
+
+		+hover
+			background: none
+			color: $link-color
+
+	.modal-body
+		max-height: none
+
+	.pagination
+		margin: 0
+
+		ul
+			box-shadow: none
+
+			> li > a,
+			> li > span
+				border: 0
+				line-height: inherit
+				padding: ($grid / 2)
+
+	.row-fluid
+		width: auto !important

src/main/sass/custom.sass

@@ -7,6 +7,7 @@
 @import fonts
 @import mod
 @import base
+@import overrides
 
 @import "extends/index"
 @import "blocks/index"