Unable to install latest brackets on Ubuntu 15.04

Update, the version below is not longer available. Now you have to install the Trusty version:

wget https://launchpad.net/~ubuntu-security-proposed/+archive/ubuntu/ppa/+build/7110687/+files/libgcrypt11_1.5.4-2ubuntu1.1_amd64.deb
sudo dpkg -i libgcrypt11_1.5.4-2ubuntu1.1_amd64.deb

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The package libgcrypt11 isn't longer an installable package in Ubuntu 15.04. You need now the library libgcrypt20.

Therefore install the latest Utopic package from here with:

sudo dpkg -i libgcrypt11_1.5.4-2ubuntu1.1_amd64.deb

Or follow the steps from my previous answer to change the dependencies for the brackets package and use libgcrypt20.