moved disk_ecryption table spec to crossplatform
link libcryptsetup
implemented get cipher type and cipher_mode:
more idiomatic c++11
no need to explicitly call std::string constructor to convert char * to std::string
update cryptsetup sources for centos
add function prototype for older libcryptsetup which is in centos6
ifdef check for centos6 which uses older libcryptsetup
remove forward declared functions defined in libcryptsetup, stylistic changes
Mostly minor documentation/wiki/guide fixes.
The breaks down the "using osqueryd" page into more of a summary
of what the daemon does from a schedule/logging perspective.
The bulk of the "using osqueryd" page now exists in the configuration
deployment page and the new "logging" deployment page.
