Fix Memory Leak

Prepare for 0.9 merge window

Explictly cast calculation to int, to allow std::min to work.

Explicitly #include stdarg.h, for access to va_list

translations update 2013-05-23

Clean up mining CReserveKey to prevent crash at shutdown

Fixes issue#2687

- integrates current translations from Transifex

More bestblock records in wallets

Set CLIENT_VERSION_IS_RELEASE, bump build to 0.8.2.1

translations update 2013-05-19 (for 0.8.2 release)

Write bestblock records in wallets:
* Every 20160 blocks synced, no matter what (before: none during IBD)
* Every 144 blocks after IBD (before: for every block, slow)
* When creating a new wallet
* At shutdown

This should result in far fewer spurious rescans.

CreateNewBlock performance improvements

Update links in build-osx.md

gitian deps-win32.yml needs psmisc package for killall to end the build

Add link to Github for Mac
Update link to HomeBrew

Add a few data-driven tests for SIGHASH_ANYONECANPAY

Doc Cleanup with Markdown

new resources for linux software package managers

- integrates current translations from Transifex
- new translation: af_ZA

- new xpm resources for different linux window managers
- new png files for autoresizing on different linux window managers
- favicon with new logo
- window .ico with new logo
- updated debian package script
- updated changelog

translations update 2013-05-08 (for 0.8.2 release)

Link with boost_chrono library on OSX