- fixed compile_individual_tex to use student Idx and the new dir structure
No need to write toggle:dropdown in onclick.yml if link written w/ :as => :dropdown

toggle:modal still needs to be specified as before though. Will change it too.

Its best to specify :toggle using :as option of simple_link because the
specification is in a HAML file - which is read frequently
Moved country info from Teachers to Account ..

Henceforth, all accounts will have country info so that demographic
info can be extracted as needed
Critical bug fixes in down method
REmoved trial accounts table, model and controllers
Doing away with parent and child keys in JSON returned by RABL ...

There is now just one 'key'. This change means that in the RABL we
will have to stop writing collection @sth and write the JSON from
first principle

But doing the latter isnt that different. And the subsequent JS code is
more elegant & intuitive
[Admin]: Loading some system overview data
Heuristically setting countries for teachers

Basically, everyone except Nicole's mom is a teacher in India - unless of course
a country has already been specified
Merge branch 'dev'