chore: bump version v0.5.1

Author: hoffstadt

docs/changelog.txt

@@ -5,9 +5,10 @@
 Below is the change log for typical users. Minor and older changes stripped
 away, please see git history for details.
 
-- v0.5.1 (2025-XX-XX) add directory ops to FILE ext (v1.1.0)
+- v0.5.1 (2025-06-23) add directory ops to FILE ext (v1.1.0)
                       fix string interning cleanup issue (v1.0.1)
                       add "bHotReloadActive" to IO context (v1.1.0)
+                      add "-hr" for hot reloads to cmd line args
 - v0.5.0 (2025-06-17) new datatime extension (v1.0.0)
                       new compression extension (v1.0.0)
                       new pak file extension (v1.0.0)

docs/version.txt

@@ -1,4 +1,4 @@
-v0.5.1 WIP
+v0.5.1
 
 -----------------------------------------------------------------------------
                              Versioning

src/pl.h

@@ -24,7 +24,7 @@ Index of this file:
 #define PL_H
 
 // global version XYYZZ
-#define PILOT_LIGHT_VERSION_STRING "0.5.1 WIP"
+#define PILOT_LIGHT_VERSION_STRING "0.5.1"
 #define PILOT_LIGHT_VERSION_NUM     00501
 #define PILOT_LIGHT_VERSION         {0, 5, 1}