All of the Xposed framework zips I flashed gave me a bootloop. Why is that so? I have a Google Nexus 4 running stock 5.1.1. It's rooted. I'm aware that there is no official release of Xposed for SDK 22. I tried flashing more than two unofficial zips via TWRP. And all of them gave me a bootloop. Yes, I cleared the Dalvik cache. I badly want to get Xposed GEL settings.
These steps worked for Nexus 4 running stock and rooted Android 5.1.1:


Download the xposed-v79-sdk22-arm.zip from the official Xposed Framework thread on XDA forum
Install that zip via recovery mode
Clear Dalvik/Cache