bad day? Fix more errors with namespace and some bugs.

Signed-off-by: Roger Manich <roger.manich@gmail.com>
Merge branch 'master' of https://github.com/sparkbits/nexus-core
add article support (get + ajax)
fix some minor bugs and add some need methods at sql level. (set time zone)

Signed-off-by: Roger Manich <roger.manich@gmail.com>