Version 0.8.6 released

The version jump from 0.8.2 to 0.8.6 acknowledges the fact that all development of the compiler is now done in Nimrod.

Bugfixes

The pragmas hint[X]:off and warning[X]:off now work.
Method call syntax for iterators works again (for x in lines.split()).
Fixed a typo in removeDir for POSIX that lead to an infinite recursion.
The compiler now checks that module filenames are valid identifiers.
Empty patterns for the dynlib pragma are now possible.
os.parseCmdLine returned wrong results for trailing whitespace.
Inconsequent tuple usage (using the same tuple with and without named fields) does not crash the code generator anymore.
A better error message is provided when the loading of a proc within a dynamic lib fails.

Added system.contains for open arrays.
The PEG module now supports the search loop operator @.
Grammar/parser: SAD|IND is allowed before any kind of closing bracket. This allows for more flexible source code formatting.
The compiler now uses a bind table for symbol lookup within a bind context. (See manual.html#templates for details.)
discard """my long comment""" is now optimized away.
New --floatChecks: on|off switches and pragmas for better debugging of floating point operations. (See manual.html#types-pre-defined-floating-point-types for details.)
The manual has been improved. (Many thanks to Philippe Lhoste!)

The compiler does not skip the linking step anymore even if no file has changed.
os.splitFile(".xyz") now returns ("", ".xyz", "") instead of ("", "", ".xyz"). So filenames starting with a dot are handled differently.
strutils.split(s: string, seps: set[char]) never yields the empty string anymore. This behaviour is probably more appropriate for whitespace splitting.
The compiler now stops after the --version command line switch.
Removed support for enum inheritance in the parser; enum inheritance has never been documented anyway.
The msg field of system.E_base has now the type string, instead of cstring. This improves memory safety.