BLD: Compact builds to fit into travis's 5-job concurrency limit

Author: y-p

.travis.yml

@@ -2,8 +2,6 @@ language: python
 
 python:
   - 2.6
-  - 2.7
-  - 3.2
   - 3.3
 
 env:
@@ -12,21 +10,13 @@ env:
 
 matrix:
   include:
-    - python: 2.7
-      env: VBENCH=true
     - python: 2.7
       env: LOCALE_OVERRIDE="zh_CN.GB18030"  # simplified chinese
     - python: 2.7
       env: FULL_DEPS=true
     - python: 3.2
       env: FULL_DEPS=true
 
-  allow_failures:
-    - python: 2.7
-      env: VBENCH=true
-    - python: 3.2
-      env: FULL_DEPS=true
-
 # allow importing from site-packages,
 # so apt-get python-x works for system pythons
 # That's 2.7/3.2 on Ubuntu 12.04

ci/README.txt

@@ -0,0 +1,17 @@
+Travis is a ci service that's well-integrated with github.
+The following ypes of breakage should be detected
+by travis builds:
+
+1) Failing tests on any supported version of python.
+2) Pandas should install and the tests should run if no optional deps are installed.
+That also means tests which rely on optional deps need to raise SkipTest()
+if the dep is missing.
+3) unicode related fails when running under exotic locales.
+
+We tried running the vbench suite for a while, but with varying load
+on travis machines, that wasn't useful.
+
+Travis currently (4/2013) has a 5-job concurrency limit. Exceeding it
+basically doubles the total runtime for a commit through travis, and
+since dep+pandas installation is already quite long, this should become
+a hard limit on concurrent travis runs.