Updated ASP.NET packages

* No longer using a beta version of Entity Framework 6
* No longer using a custom build of the MySQL driver for EF6
* Updated ASP.NET MVC Framework from v4 to 5.1.0
* Updated other libraries to their latest versions
Upgrade mono to 3.2.6
cpoll_cppsp: single query: do not output "[" and "]"
replace Mojolicious app with a true non-blocking Mojolicious app
added /updates route and modified the shared render_query
simplify update logic
remove unnecessary closure
updated dependencies
improve setup script to write json config file
clean up setup
be more careful about the existence of the tx object for fortunes
update benchmark_config
Upgrade mono to 3.2.8
Updating Dropwizard to 0.7, and adding additional test implementations
Removing dropwizard resource timing
add support for Apache Cassandra DB
add support for Apache Cassandra DB
add Apache Cassandra v2.0.7 standard config
configure Cassandra for FrameworkBenchmarks environment
upgrade to Cassandra 2.0.7; fix installation path bug