added dependencies sections to installation docs

docs/installation.rst

@@ -8,7 +8,7 @@ Installation
 From sources
 ------------
 
-The sources for Ordr2 can be downloaded from the `Github repo`_.
+The sources for Ordr2 can be downloaded from the `Git repo`_.
 
 You can clone the public repository:
 
@@ -29,7 +29,7 @@ Once you have a copy of the source, you can install it with:
 
     $ pip install .
 
-.. _Github repo: https://git.cpi.imtek.uni-freiburg.de/holgi/ordr2
+.. _Git repo: https://git.cpi.imtek.uni-freiburg.de/holgi/ordr2
 
 
 Stable release (CURRENTLY NOT AVAILABLE)
@@ -51,3 +51,50 @@ you through the process.
 .. _Python installation guide: http://docs.python-guide.org/en/latest/starting/installation/
 
 
+Dependencies
+------------
+
+These are the top-level packages that are needed by the webapp and why. They
+rely propably on other packages as well.
+
+
+pyramid
+    the framework for the web applicatoin
+
+pyramid_debugtoolbar
+    debugging the web application in the browser
+
+
+pyramid_jinja2
+    Jina2 templating engine for the pyramid web framework
+
+pyramid_tm
+    automatic transaction management based on the request life cycle
+
+SQLAlchemy
+    database abstraction
+
+transaction
+    transaction management
+
+waitress
+    wsgi server for developement
+
+zope.sqlalchemy
+    required by pyramid_tm transaction binding
+
+
+For running tests
+~~~~~~~~~~~~~~~~~
+
+pytest
+    for testing python projects
+
+pytest-cov
+    test coverage report for pytest
+
+pytest-runner
+    required for `test` command in setup.py
+
+WebTest
+    run functional or integration tests on the web application