Fix face groups
Update node pointers and reformat menus
Do not load pkg-info at runtime [#221]
Initialize packages for compilation
Declare pkg-info functions for the byte compiler [#221]
Disable tabs indentation for all el files

This is to avoid a indentation mess as in #219
Do not check .dir-locals.el with checkdoc
Allow to define new error levels
Fix selection tests

Regression from 07c7030
Merge branch 'feature/extensible-error-levels'

* feature/extensible-error-levels:
  Allow to define new error levels

Conflicts:
	doc/flycheck.texi
Test against Clang 3.2

Fixes a divergence between the local testing VM and Travis CI which uses
Clang 3.2 by default.
[Fix #222] Don't check encrypted files automatically
Install gnupg on the testing VM [#222]

Needed to run tests from 81dc674
Explain when global mode will not check buffers

[ci skip]
Specify manual encoding

[ci skip]
Remove misplaced local variable section

[ci skip]
Rework the HTML front matter of the manual

[ci skip]
[Fix #225] Use inplace source for Clang checker

Needed for Clang to find local includes
Clarify doc of -process-error-functions a little

[ci skip]