implemented builtin noncopying slice
Fixes #1168
Fix #1170.
Added support for ref type hash tables.

This reuses the hash table implementation for objects (and the
associated tests). For efficiency reasons, iterator implementations
are currently adapted rather than calling the TTable code.
Merge pull request #1177 from rbehrends/reftables

Added support for ref type hash tables.
Merge pull request #1175 from EXetoC/await-discard

Fix #1170.
fixes #1140
Clarify newFileSize & mappedSize params in memfiles.open() docs
some additions to winlean
added test case for bug #1140
Merge branch 'devel' of https://github.com/Araq/Nimrod into devel
bootstraps works again; get rid of compile-time 'rand' (too weird)
Update posix open() call to incl. permissions

This explicitly grants user read/write access to newly-created mmap files. Previously, on some systems files would be created but could not be re-opened as the user lacked sufficient permissions.
attempt to fix the bootstrapping
2nd attempt to fix bootstrapping
added .ilk files to the koch clean list, these are incremental link information files for MSVC
bugfix: bool for case statements
Merge pull request #1185 from barcharcraz/kochilk

added .ilk files to the koch clean list
fix some typos
Merge pull request #1186 from ppelleti/typos

fix some typos