API Endpoint for searching packages

[iambibhas]

It'd be nice to have an API endpoint to search packages, so that anyone can build things on top of the site. It can return a list of packages, with the most important info -

[{
    "last_fetched": "2015-02-28T12:04:58.537",
    "slug": "django",
    "resource_uri": "/api/v3/packages/django/",
    "pypi_url": "http://pypi.python.org/pypi/Django",
    "repo_url": "https://github.com/django/django",
    "absolute_url": "/packages/p/django/",
    "repo_description": "The Web framework for perfectionists with deadlines.",
    "repo_watchers": 13087,
    "title": "Django",
    "pypi_version": "1.8b1",
    "documentation_url": "https://djangoproject.com",
    "participants": "adrianholovaty,malcolmt,freakboy3742,timgraham,aaugustin,claudep,jezdez,jacobian,spookylukey,alex,ramiro,andrewgodwin,gdub,akaariai,kmtracey,jbronn,pydanny,audreyr,etc",
    "modified": "2015-03-01T08:00:39.708",
    "usage_count": 356
},
{
    "last_fetched": "2015-02-28T12:04:58.537",
    "slug": "django",
    "resource_uri": "/api/v3/packages/django/",
    "pypi_url": "http://pypi.python.org/pypi/Django",
    "repo_url": "https://github.com/django/django",
    "absolute_url": "/packages/p/django/",
    "repo_description": "The Web framework for perfectionists with deadlines.",
    "repo_watchers": 13087,
    "title": "Django",
    "pypi_version": "1.8b1",
    "documentation_url": "https://djangoproject.com",
    "participants": "adrianholovaty,malcolmt,freakboy3742,timgraham,aaugustin,claudep,jezdez,jacobian,spookylukey,alex,ramiro,andrewgodwin,gdub,akaariai,kmtracey,jbronn,pydanny,audreyr,etc",
    "modified": "2015-03-01T08:00:39.708",
    "usage_count": 356
},
...
]

Search can take a string and search title and description with that. Results can be sorted by a combination of usage_count and modified.

[pydanny]

It's still in the alpha stage, but https://www.djangopackages.com/api/v4/search/.

It's what powers the search in the header bar. Right now there is no sorting, just a display of weighted results.