Added symlink procs
fixes #735
Merge pull request #861 from Varriount/os/add-linkprocs-prettyplease

Added symlink procs
fixes #844
Merge branch 'devel' of https://github.com/Araq/Nimrod into devel
bootstraps again
cleaned up command expressions
Adds convenience mapIt templates.
Merge pull request #846 from gradha/pr_adds_mapit_templates

Adds convenience mapIt templates to sequtils.
Mentions {.exportc.} limits. Refs #826.
Adds utimes() importc to posix module.
Merge pull request #862 from gradha/pr_mentions_exportc_limits

Mentions {.exportc.} limits. Refs #826.
Merge pull request #864 from gradha/pr_adds_posix_utimes

Adds utimes() importc to posix module.
Expandeded part about different proc call syntaxes.
Fix optarg() and added two more tests.

One for 'do notation' in a single function in an expression, another the trick of using the method call syntax to pass two parameters.
Remove spurious import added in the last commit.
macro tests almost green
updated todo.txt
Merge branch 'devel' of https://github.com/Araq/Nimrod into devel
Merge pull request #865 from ReneSac/devel

Additions to the language manual and tests of new procedure call syntax.