lst$(..,..,VIS) affixes {} to unvisited operator nodes

Changed which line is commented

Consistent use of QDOUBLE flag

numbers containing dot weren't properly string matched.

Merge branch 'master' of https://github.com/BartJongejan/Bracmat

Update Installing-emcc.md

Did not match correctly: a*b*c:(a*b*c ?)*?z

Added some safeguards

UTF-8, line feed, no CR

Force UTF-8 encoding

Removed unneeded comments and changed //.. to /*..*/

Fixed bug in SortMOP(). Bad handling of neutral elements.

Allow / in unquoted HTML(5) attribute, even if followed by >

Added test in `for' loop.

Changed ' to ' in toML$ function

Fixed recently introduced bug in mop$ function

Adapted to latest versionof emcc

lst$ must fail if symbol is not bound

Fixed bug in yesterday's code (SortMOP)

map/mop/vap can take empty function. mop merge sorts output sum/product

Added optional parameter to mop$, specifying separator in output

Added built in function tme for current time

Several minor adaptations and text updates.`

Added export of floating point, not scientific, data

Update README.md

nestML function: explicitly close non-empty elements

int --> size_t for variable op_or_0

toML function: Removed the space before the slash in empty tags (void…