doc/conventions.txt: build -> Build; some other tweaks

conventions.txt

@@ -40,7 +40,7 @@ Naming:
 
 Logging:
 - Use core/log.h. Only use stdout directly in case of an interactive command
-  line interface (like printing errors in command line arguments).
+  line interface (like printing errors for command line arguments).
 
 Non-exception throwing and exception-throwing methods
 -----------------------------------------------------
@@ -50,7 +50,7 @@ Non-exception throwing and exception-throwing methods
 Directory structure
 -------------------
 ├── 3rdparty    << Bundled 3rd-party libraries
-├── build       << Build files; always mkdir build; cmake .. to keep things clean
+├── Build       << Build files; "mkdir Build; cmake ..; make"
 ├── cache       << Runtime directory used by Buildat
 ├── builtin     << Built-in modules
 ├── client      << Built-in client files

todo.txt

@@ -3,3 +3,6 @@ Buildat TODO
 - Cache a hash of each compiled module in order not to rebuild them
   unnecessarily
 - Modules should be run in threads.
+- Implement buildat:sub_packet
+- Implement module depencencies in test/testmodules/__loader
+- There should probably be a builtin/loader that __loader usually wants to call