Initial commit of ADMButils files

This is the initial commit of the files associated with my ADMButils
package.  Some developement has occurred since ADMButils 2.0,
specifically, readcxx() and admbdir() have been added to the package
and the existing read functions have been updated to use admbdir() to
parse their file arguments.  Most of the documentation has been
updated to reflect these changes.
Files used for ADMButils_3.0.0

Package passed all of the R CMD checks.  Differences from AMDButils
2.0.0 are the inclusion of readcxx() to facilate working with the admb2R
package and the use of admbdir() for most of the reading or scanning
functions.  Complete documentation has been provided for both of these functions.
Files for ADMButils 3.0.1

included function read.mcmc and added small changes to a number of
other functions (mostly associated with their examples).
Moved repository up one directory and added all files associated with package.
Merge branch 'master' of github.com:AdamCottrill/ADMButils

Conflicts:
	README.md