Use LLStringUtil::getenv() or getoptenv() whenever we fetch a string that will
be used as a pathname.

Use LLFile::tmpdir() instead of getenv("TEMP").

As an added extra-special bonus, finally clean up $TMP/llcontrol-test-zzzzzz
directories that have been accumulating every time we run a local build!

On Windows, when logged in with a non-ASCII username, every one of the three
documented APIs -- SHGetSpecialFolderPath(), SHGetFolderPath() and
SHGetKnownFolderPath() -- fails to retrieve any pathname at all. We cannot
account for the fact that the oldest of these continues to work with the
release viewer and within a Python script (though not, curiously, from a
Python interactive session). With a non-ASCII username, they consistently fail
when called from an Alex Ivy viewer build: "The filename, directory name, or
volume label syntax is incorrect."

Empirically, with a non-ASCII username, the preset APPDATA and LOCALAPPDATA
environment variables are also useless, e.g. c:\Users\??????\AppData\Roaming
where those are, yup, actual question marks.

Empirically, the VMP is able to successfully call SHGetFolderPath() to
retrieve both AppData\Roaming and AppData\Local. Therefore, we make the VMP
set the APPDATA and LOCALAPPDATA environment variables to the UTF-8 encoded
correct pathnames. Instead of calling SHGetSomethingFolderPath() at all, make
LLDir_Win32 retrieve those environment variables.

Make LLFile::mkdir() treat "directory already exists" as a success case. Every
single call fell into one of two categories: either it didn't check success at
all, or it tested specially to exempt errno == EEXIST. Migrate that test into
mkdir(); eliminate it from call sites.

Make LLDir::append() and add() convenience functions accept variadic
arguments. Replace add(add()...) constructs, as well as clumsy concatenations
of directory names and getDirDelimiter(), with simple variadic add() calls.

... so the last occurance of the build prefix in the executable path
will be matched. This should avoid cuttung too much subdirs away if
someone checks out the source to a path already containing
"/build-darwin-" or "/build-linux-".

The bug seems to be caused by recent switch to Autobuild, which affected the build directory path.

- Replaced all existing usages of LLDir::getNextFileInDir() with the new directory iterator object.
- Removed platform specific LLDir::getNextFileInDir() implementation.

--HG--
branch : storm-102

--HG--
branch : storm-102

also fixes:
SNOW-522 FIXED crash due to looking for skins/paths.xml at the wrong path

originally commited at http://svn.secondlife.com/trac/linden/changeset/3550

SVN changeset did not apply automatically due to changed context.
Manually applied changes, which was straight forward.

Added SNOW-522 in doc/contributions.txt, because that's fixed by this, too.
(transplanted from 8afc8382dd9bddd4968060d306d96218d571a171)

EXT-4470 Several bad assumptions that LL_PATH_PER_SL_ACCOUNT is always good (which it isn't until after login)

To be reviewed by Soft!

it really has no point now - it's not used by the viewer, and the webkit plugin's private space should be opaque to the viewer.

merging in new wearable infrastructure to get a step closer to eventually supporting multiple wearables per type. Merge tested and compiles/working on linux and windows - no obvious regressions on appearance or appearance editor. Merge generated no conflicts due to being tested in fresh re-branch in avatar-pipeline/multiple-textures-12. Merge perfomed with following command:

svn merge -r 136489:136510 svn+ssh://svn.lindenlab.com/svn/linden/branches/avatar-pipeline/multiple-textures-12 .

Progress can be tracked in DEV-32551.

 -Nyx

Merging branches/media-on-a-prim/moap-7 down to viewer-2.0.

svn merge -r 129841:129910 svn+ssh://svn.lindenlab.com/svn/linden/branches/moss/pluginapi_05-merge@129910

svn merge -r 129913:131718 svn+ssh://svn.lindenlab.com/svn/linden/branches/pluginapi/pluginapi_05

Some branch shenannigans in the pluginapi_05 branch caused this to become a two-part merge.

Cherry-picking a change to the code that uses the copy of skins in the development tree instead of the version in the app bundle on the mac.

Reviewed by James.

ignore-dead-branch

Result of svn merge -r107256:107258 svn+ssh://svn/svn/user/phoenix/license_2009_merge into trunk. QAR-1165

merge Branch_1-20-14-Viewer-merge -> release
Includes Branch_1-20-Viewer-2 through 92456

dataserver-is-deprecated

dataserver-is-deprecated
for-fucks-sake-whats-with-these-commit-markers

Result of svn merge -r71162:71205 svn+ssh://svn/svn/linden/branches/new-license into release. only changes files which are not deployed or the comments section of code.

* WARNING *:  maintenance r64837 is not the last rev to use in the next merge. use r65269

svn merge -r59459:59476 svn+ssh://svn.lindenlab.com/svn/linden/branches/adroit.r69-75_2 into svn+ssh://svn.lindenlab.com/svn/linden/release.

corrected, removed, and updated comments throughout the code to be more useful. no code changes. SL-13762