pgbundle: Fix build ignore and index parsing; ignore .vdl.js files.

Fixed file header parsing to ignore '+build ignore' instead of
'+build omit' and ignore blank lines before index.
Prevented crash on parsing blank file.
Added .vdl.js files to ignore pattern.
Improved Makefile.

Change-Id: I5a794729f64c7215ca751cf40a4a279af79cb947
3 files changed
tree: 82db264d6aec5780f84300bff7e666d3c2683742
  1. pgbundle/