Boost vagrant vm memory and add a processor

Building the node mapnik bindings takes an extremely long time unless you
give the VM some room to move.
Move ecobenefit search to treemap app

The initial thought a long time ago was that tree benefits calcuations
would have their own url, so that when you do a search, you would get
back tree benefits. As we continued to develop searching api and it
turned out that we will want to return more than ecobenfits. We may
want species data, tree counts, etc. So, we don't want this whole
other endpoint just for searching. As we kept adding more stuff, we
realized this doesn't really belong here anymore, it's not just going
to be eco benefits. So, we are moving it to the regular app. It's
going to grow into the main search function.

However, it may be useful down the road to again factor out the
portion that calculates eco benefits and but that back in
ecobenefits.views or in a utility function library like
ecobenefits.utils.
Merge pull request #37 from jwalgran/topic/more-vagrant-vm-power

Boost vagrant vm memory and add a processor
Fix command chaining so umount actually runs
Modify VagrantFile and bootstrap.sh to work with vagrant 1.2+
Merge pull request #39 from azavea/topic/buildFixes

Topic/build fixes
Remove examples

These were just to show some examples working. We're not using this anymore.
Merge pull request #38 from steventlamb/topic/promote_ecobenefit

Move ecobenefit search to treemap app
Use a simpler default instance.center for tests

Point(0, 0) makes it easier to write tests with simple mental
math. For example, it's easy to tell that (2, 2) is further from (0,
0) than (1, 1) so the tests are more readable.
Factor out reusable logic in BoundaryViewTest
Add a junction table for instances and boundaries
Correct the comments on how to install and use guard
Modify README file to add header
Add a view for boundary name autocomplete
Modify boundary_autocomplete view to accept param

The user can pass in a maximum return value to override the default
of 10.
Change return type of boundary_autocomplete

Return a list of dicts instead of a list of names.
testing build, again
Refactor BoundaryViewTest class to support more tests
Add test for boundary_autocomplete max_length param
Merge pull request #42 from steventlamb/topic/boundary_autocomplete

Topic/boundary autocomplete