Use egg in pip url

Otherwise, for some reason, the conda environment created by asv installs the released version of pymbolic.

asv.conf.json

@@ -68,13 +68,13 @@
     // },
     "matrix": {
         "numpy" : [""],
-        "sympy" : ["1.0"],
-        "pyopencl" : [""],
-        "islpy" : [""],
-        "pocl" : [""],
+        "sympy" : ["1.1.1"],
         "pip+git+https://github.com/inducer/pymbolic#egg=pymbolic": [""],
+        "pip+git+https://github.com/inducer/islpy#egg=islpy": [""],
+        "pip+git+https://github.com/inducer/pyopencl#egg=pyopencl": [""],
         "pip+git+https://gitlab.tiker.net/inducer/boxtree#egg=boxtree": [""],
         "pip+git+https://github.com/inducer/loopy#egg=loopy": [""],
+        "pip+git+https://github.com/inducer/pyfmmlib#egg=pyfmmlib": [""],
     },
 
     // Combinations of libraries/python versions can be excluded/included