[INTERNAL] Grunt: Switch to grunt-eslint 2.0.0 and enable --quiet

To avoid searching for actual errors within thousands of warnings, by
default the build should only report errors.

Change-Id: I95b1d242a59246ab06a5e82dbf0613949b6b0673
[FEATURE] sap.m.List: HCB modified according to the guidelines

- Modified ListBase.less
- Modified ListItemBase.less
- Modified StandartListItem.less

Change-Id: I8b3e9d6440cc9148a8a52e42ddf0621fd690e7ea
Merge "[FEATURE] sap.m.List: HCB modified according to the guidelines"
Merge "[INTERNAL] Grunt: Switch to grunt-eslint 2.0.0 and enable --quiet"