Mark std.file.getSize as trusted
Use nested trusted function
Deprecated most of the old std.process functions

I have purposefully omitted doing anything about the exec* function
family here, as their fate is still under discussion.
Remove unused private writefx() function.

This eliminates the 3rd last usage of doFormat in Phobos, thus inching
us closer to fully fixing bug #4532.
Merge pull request #2403 from quickfur/issue4532b

Remove unused private writefx() function.
Merge pull request #2402 from kyllingstad/std-process-deprecated

Deprecated most of the old std.process functions
Fix screwed up list nesting in getopt's ddoc comment.
Fix std.string ddoc problems.

Fix missing parameters in ddocs for indexOfAny, indexOfNeither, etc..
Fix missing closing ')' which causes ddoc nesting error.

This should get rid of the warnings spewed by the compiler when building
the docs for `std.string`.
Fix missing $(RPAREN) in ddoc for std.random.uniform01.
Merge pull request #2407 from quickfur/random_ddoc

[dox] Fix missing $(RPAREN) in ddoc for std.random.uniform01.
Merge pull request #2405 from quickfur/getopt_ddoc

[dox] Fix screwed up list nesting in getopt's ddoc comment.
fix issue 9942 - Add a functional switch function

std.algorithm.predSwitch is the functional version of the `switch`
statement(without a lookup table).
Merge pull request #2406 from quickfur/string_ddoc

[dox] Fix std.string ddoc problems.
Merge pull request #2385 from tom-tan/trusted-file-getSize

Mark std.file.getSize as trusted
Merge pull request #1259 from idanarye/add-a-functional-switch-function

fix issue 9942 - Add a functional switch function