Fix FAQ link

The link to the `monero7` FAQ was dead because it tried to go to a new page

refactor scratchpad creation

amd simplify kernel for different algorithms

Use the maximum scratchpad size from before and after the fork.

- remove version numbers within the kernel
- create seperate program context for each mining algorithm
- remove kernel `cn1_monero` is now integrated in `cn1`
- remname `cnX` kernel in `cnX + algorithmNumber`

Fix spelling mistake in gpu.cpp

Repair all 'namepsace' to 'namespace' (all within comments)

Add CROAT coin

Add support for Haven (XHV) using CryptoNight Heavy

NVIDIA: fix sumokoin

sumokoin is broken if `bfactor >= 5` is used (default for windows)
sumokoin for `sm_20` is broken due to the missing extern shared memory

- call phase3 kernel two times if sumokoin is enabled
- create extern shared memory for phase3 kernel

fix cuda architecture detection

fix #1297

If sm_20 is mixed with other architectures the detection for the minimal supported architecture is broken.

AMD OpenCL: fix sumokoin

- fix that version argument was not passed to extended kernel parameters

Change vid

increase version for release to 2.4.0

add stellite coin

-rename `mining_fork_height` to `*_version`

- add `fork_height` to currency
- refactor algorithm selection

Add cn-heavy to algo report

fix OpenCl AMD on OSX

Remove portbin from docs for now

fix #1218

- remove inline function with ugly macro :-(

fix minor text issues in compile.md

instructions for new gcc versions

Yet another nicehash workaround -.-