Merge pull request #43 from micahcochran/add-travis

* Incorporates rebased #43
* Closes #43
* Add Travis-CI, remove one doctest "...    # do something here" throws off doctest in Python 2.7, removed a > to make that one not a doctest. Added .travis.yml for Travis-CI.  I'm expecting Python 3.x tests to fail.
* on success test return 0, on failure return the number of failed tests
* added sys.exit() for return code
* convert README.txt from dos to unix format, see if it helps doctest

Author: Micah Cochran

.travis.yml

@@ -0,0 +1,23 @@
+sudo: false
+
+addons:
+  apt:
+    packages:
+      - dos2unix
+
+language: python
+
+python:
+  - "2.6"
+  - "2.7"
+  - "3.2"
+  - "3.3"
+  - "3.4"
+  - "3.5"
+  
+  
+install: 
+  - dos2unix README.txt
+  - pip install .
+  
+script: python shapefile.py

README.txt

@@ -295,9 +295,9 @@ The blockgroup key and population count:
 
 There is also an iterShapeRecords() method to iterate through large files:
 
->>> shapeRecs = sf.iterShapeRecords()
->>> for shape, rec in shapeRecs:
-...     # do something here
+>> shapeRecs = sf.iterShapeRecords()
+>> for shape, rec in shapeRecs:
+..     # do something here
 
 Writing Shapefiles
 ++++++++++++++++++

shapefile.py

@@ -1190,7 +1190,8 @@ def __fieldNorm(self, fieldName):
 def test():
     import doctest
     doctest.NORMALIZE_WHITESPACE = 1
-    doctest.testfile("README.txt", verbose=1)
+    failure_count, test_count = doctest.testfile("README.txt", verbose=1)
+    return failure_count
 
 if __name__ == "__main__":
     """
@@ -1199,4 +1200,6 @@ def test():
     testing libraries but for now unit testing is done using what's available in
     2.3.
     """
-    test()
+    failure_count = test()
+    sys.exit(failure_count)
+