make changes discussed in PR 85

Author: zardus

libheap/install

@@ -1,10 +1,7 @@
 #!/bin/bash
 
-git clone https://github.com/cloudburst/libheap
-
 # move to ctftools virtual env
-source ${VIRTUALENVWRAPPER_SCRIPT}
-workon ctftools
+source ctf-tools-venv-activate
 
-cd libheap
-python setup.py install
+git clone --depth 1 https://github.com/cloudburst/libheap
+pip install -e libheap