Changes default log level to debug (2)

Helps with troubleshooting and error reporting.
Also closes #824

buildozer/__init__.py

@@ -112,7 +112,7 @@ class Buildozer(object):
 
     def __init__(self, filename='buildozer.spec', target=None):
         super(Buildozer, self).__init__()
-        self.log_level = 1
+        self.log_level = 2
         self.environ = {}
         self.specfilename = filename
         self.state = None
@@ -139,7 +139,7 @@ class Buildozer(object):
 
         try:
             self.log_level = int(self.config.getdefault(
-                'buildozer', 'log_level', '1'))
+                'buildozer', 'log_level', '2'))
         except Exception:
             pass
 

buildozer/default.spec

@@ -248,7 +248,7 @@ ios.ios_deploy_branch = 1.7.0
 [buildozer]
 
 # (int) Log level (0 = error only, 1 = info, 2 = debug (with command output))
-log_level = 1
+log_level = 2
 
 # (int) Display warning if buildozer is run as root (0 = False, 1 = True)
 warn_on_root = 1

tests/test_buildozer.py

@@ -86,11 +86,11 @@ class TestBuildozer(unittest.TestCase):
         """
         # the default log level value is known
         buildozer = Buildozer('does_not_exist.spec')
-        assert buildozer.log_level == 1
-        # sets log level to 2 on the spec file
-        self.set_specfile_log_level(self.specfile.name, 2)
-        buildozer = Buildozer(self.specfile.name)
         assert buildozer.log_level == 2
+        # sets log level to 1 on the spec file
+        self.set_specfile_log_level(self.specfile.name, 1)
+        buildozer = Buildozer(self.specfile.name)
+        assert buildozer.log_level == 1
 
     def test_log_print(self):
         """