small speed enhancement in "fmelt". Replaced for-loops with 'memcpy' wherever possible.

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1183 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Reverting memcpy on STRSXPs to for-loops. Thanks Matt.

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1184 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Suppress 'dcast' messages in tests.

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1185 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Forgot to comment test number verbose + minor change to dcast
Forgot to comment test number verbose + minor change to dcast

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1186 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
minor edit in tests
minor edit in tests

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1187 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
MyVar=TRUE; DT[,sum(b,na.rm=MyVar),by=a] is now gforce optimized and tested. Thanks Arun.

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1188 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
More tests of joining and grouping NA,NaN,+Inf and -Inf

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1189 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Merge branch 'refs/heads/r-forge-git-svn-local'
fread now accepts quotes (' and ") inside fields, #2694

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1190 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
+fread's progress meter is back
+added time for setkey to intro and timings vignette

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1191 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
NEWS tidy up, comment-only change in fread.c

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1192 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
v1.9.0 submitted to CRAN, bump to v1.9.1

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1193 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Merge branch 'refs/heads/r-forge-git-svn-local'
Avoided integer64 overflow in fread rather than detecting it.  Thanks to BDR, ASAN and UBSAN.

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1194 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Fixed rbindlist heap-buffer-overflow detected by ASAN when binding ordered factors, and, some of the list of data.table/list are null or empty.

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1195 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Merge branch 'refs/heads/r-forge-git-svn-local'
Added data.table_1.8.11.tar.gz to www for Bradley

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1196 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Merge branch 'refs/heads/r-forge-git-svn-local'