first commit.
implemented initial nodeinfo, insert/update/delete/load, view hooks, and general test is success
fixed company and job post insert/update/delete/load/view.
added job category list page as main page
job category list page
added taxonomny to job types and fixed job types default options.
fixed markups of hook_node_view() for both node types
added job_node_view() and fixed Job Location Hong Kong
finished list of job post in a category
fixed RSS for list of job post in a category
fixed pager theme for list of job posts
added screenshot
Merge branch 'master' of https://github.com/sammyfung/drupal7-job