Fix some requirements and installation instruction

- Add coverage to test-requirements which was causing import error when
  running `make test`
- Add "make" to bindep.txt for rpm package
- Add "python-dev/python-devel" to bindep.txt
- Add some instration guide example, how to install those dependency
  packages

Change-Id: Ib4a19e734e68ac4d3be7ea13dc72a97b4e209b2b

README.md

@@ -232,8 +232,19 @@ Quick Start
     * liberasurecode v1.2.0 or greater [3]
     * Erasure code backend libraries, gf-complete and Jerasure [1],[2], ISA-L [4] etc
 
-  Install PyECLib::
+    An example for ubuntu to install dependency packages:
+      $ sudo apt-get install build-essential python-dev python-pip liberasurecode-dev
+      $ sudo pip install -U bindep -r test-requirement.txt
 
+    If you want to confirm all dependency packages installed succuessfully, try:
+      $ sudo bindep -f bindep.txt
+
+    That shows missing dependency packages for you, http://docs.openstack.org/infra/bindep/
+
+    *Note*: currently liberasurecode-dev/liberasurecode-devel in package repo is older
+            than v1.2.0
+
+  Install PyECLib::
     $ sudo python setup.py install
 
   Run test suite included::

bindep.txt

@@ -3,5 +3,8 @@
 
 build-essential [platform:dpkg]
 gcc [platform:rpm]
+make [platform:rpm]
 liberasurecode-dev [platform:dpkg]
 liberasurecode-devel [platform:rpm]
+python-dev [platform:dpkg]
+python-devel [platform:rpm]

test-requirements.txt

@@ -2,5 +2,6 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
+coverage
 nose
 sphinx>=1.1.2,!=1.2.0,!=1.3b1,<1.3  # BSD