Merge pull request #348 from dbetebenner/master

Update to 1.0-6.0 and passes of R CMD check
Merge of updates from damian
Update of studentGrowthPercentiles
Got rid of extraneous text
get rid of conflicts
simex update based on AVI's suggestions
simex update delete setnames from extrap
simex update delete Corrected_Percentiles
reorganize quantile.data.simex and SGPercentiles
Merge pull request #349 from shangyi/master

Integration of .simex.sgp into studentGrowthPercentiles
Merge branch 'master' of github.com:SchoolView/SGP Update of .simex.sgp
Full integration of simex into SGP package