What I’ve missed in 2013: Front-end package manager.
I just hate to go to vendor websites, downloading zip/tgz/tar.bz2 files, unpacking them, coping files, placing in some folders, and so on, and so on. Every time you need to install new front-end library or framework – you do the same. Every time you need to update something – you do the same.
So, the short list of Front-end package managers:
All looks great with small exceptions: packages support from vendors. Not all packages are present in all managers or there are old versions, not all vendors want to support package managers.
I hope everything will change in matter of months or a year.