Adding .travis.yml
New test with travis.yml
Added cmake installation for Travis
Update README.md
Merge branch 'master'
Fixed some bugs in map generation

- Removed hardcoded 1024 value
- Replaced x,y with chunk_x, chunk_y where relevant
- Changed smart ptr creation to start of generation function to prevent
from cleaning memory when exiting (takes a long time)
- FIXED a bug in flat generation in the for loop (from 0 to x+chunkSize,
now only from 0 to chunkSize)
- Still takes too long on VS to free up memory after test()