Remove additional references to "--pre" and use "python setup.py develop" instead of "-e" magic

Related to Gallopsled/pwntools#735

TESTING.md

@@ -10,8 +10,7 @@ To run the test suite, it is beste to use Ubuntu 12.04 or 14.04, and run the fol
 ```sh
 bash .travis_install.sh
 bash .travis_ssh_setup.sh
-pip install -e .
-pip install -r docs/requirements.txt
+pip setup.py develop
 cd docs
 PWNLIB_NOTERM=1 make clean doctest
 ```

docs/source/install.rst

@@ -27,14 +27,6 @@ pwntools is available as a ``pip`` package.
     $ apt-get install python2.7 python2.7-dev python-pip
     $ pip install --upgrade pwntools
 
-Alternatively you can get early access to the beta release if you want to help
-file bugs or simple get newer features:
-
-.. code-block:: bash
-
-    $ pip install --upgrade --pre pwntools
-
-
 Development
 --------------
 
@@ -44,6 +36,6 @@ If you are hacking on Pwntools locally, you'll want to do something like this:
 
     $ git clone https://github.com/Gallopsled/pwntools
     $ cd pwntools
-    $ pip install -e .
+    $ python setup.py develop
 
 .. _Ubuntu: https://launchpad.net/~pwntools/+archive/ubuntu/binutils

shippable.yml

@@ -5,8 +5,7 @@ before_install:
   - source .travis_install.sh
   - source .travis_ssh_setup.sh
 install:
-  - pip install -e .
-  - pip install -r docs/requirements.txt
+  - python setup.py develop
 before_script:
   - PWNLIB_NOTERM=1 python -c 'from pwn import *; print pwnlib.term.term_mode'
   - PWNLIB_NOTERM=1 python -c 'from pwn import *; print pwnlib.term.term_mode'