Add text_replace primitive. Closes #2493.
Merge branch 'master' of git://xlr.git.sourceforge.net/gitroot/xlr/xlr
Fix 'unused parameter' warning on Windows.

Found after installing Qt 4.8.3.
Define random_seed to initialize the random generator with a seed. Refs #2593.
Accept lines terminated with field separator, fixes #2613
Add a primitive to check if a file exists or not. Refs #2616.
MacOSX, Linux: fix isAbsolute() in runtime.cpp. Fixes #2620.
Reload correctly the load_data if the file has changed. Closes #2623.
Merge branch 'master' of git://xlr.git.sourceforge.net/gitroot/xlr/xlr
Merge branch 'master' of ssh://nano.taodyne.com/~soulisse/Work/xlr
xl_load_data: in quoted strings, escape double quote by doubling it. Fixes #2627.
xl_load_data: do not replace 0xA0 with space. Fixes #2629.
Key load_csv data off file name, fixes #2634
Merge branch 'master' of Baptiste Soulisse, refs #2634, refs #2623

Merged the fix for #2623 reusing the per-file data introduced in #2634

Conflicts:
	xlr/runtime.cpp
Merge branch 'master' of git://xlr.git.sourceforge.net/gitroot/xlr/xlr
Used absolute path for CSV file name, closes #2623

Apparently, the use of a relative path in
commit:08c03a5f0168366752fe4a9cb7eebc6db0bb5871 causes a regression
when running on Jerome's machine. I'm unsure why I don't see the
problem on my side. Change in MacOSX behaviour or initial path?
Merge branch 'master' of git://xlr.git.sourceforge.net/gitroot/xlr/xlr
Add error information to debug problem on win7Pro
Using utf8_ifstream to open csv file. Closes#2643
Purge source info if we overwrite it. Fixes #2642